I don't know of any Nostr clients that show "the entire post from the end to the beginning." Maybe we are referring to different things as the "post" though.
In the example below from Coracle, there is an "entire post" from nostr:nprofile1qy88wumn8ghj7mn0wvhxcmmv9uq3gamnwvaz7tmpd3nk7tn4w3ux7tn0dejj7qg4waehxw309ask2emfwvh82arcduhx7mn99uq3zamnwvaz7tmwdaehgu3wd3skuep0qyvhwumn8ghj7urjv4kkjatd9ec8y6tdv9kzumn9wshsz9thwden5te0wfjkccte9ejxzmt4wvhxjme0qyg8wumn8ghj7mn0wd68ytnddakj7qghwaehxw309aex2mrp0yhxummnw3ezucnpdejz7qg4waehxw309aex2mrp0yhx7mrpwvhxzurs9uq3xamnwvaz7tmhda6zuat50phjummwv5hsqgx9s2hh3hl5gfcqa3v7y9ux2v48qaxqp05t0v02exymha3xnqrfes3p86df , clearly displayed from beginning to end, with the beginning of the post at the top, and the end of the post at the bottom." Below that, is a completely separate post from nostr:nprofile1qyt8wumn8ghj7etyv4hzumn0wd68ytnvv9hxgtcpz4mhxue69uhhyetvv9ujuerpd46hxtnfduhszythwden5te0dehhxarj9ekxzmny9uqsuamnwvaz7tmwdaejumr0dshsz9nhwden5te0dp5hxapwdehhxarj9ekxzmny9uq3wamnwvaz7tmjv4kxz7fwdehhxarj9e3xzmny9uq3zamnwvaz7tmwdaehgu3wwa5kuef0qy28wumn8ghj7ctvvahjuat50phjummwv5hsz9thwden5te0v9jkw6tn9e6hg7r09ehkuef0qyghwumn8ghj7vf5xqhxvdm69e5k7tcqyrt8nv85e9yyxpmnq8yjqjqvn5hj6ykflfk3qdfwzd8trsyz9xkf5hv535t, also displayed from beginning to end.

Each of these separate posts reads quite naturally, because you don't need any context from nostr: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' post in order to understand nostr:nprofile1qyvhwumn8ghj7urjv4kkjatd9ec8y6tdv9kzumn9wshsz9thwden5te0v9jkw6tn9e6hg7r09ehkuef0qy88wumn8ghj7mn0wvhxcmmv9uq3gamnwvaz7tmpd3nk7tn4w3ux7tn0dejj7qgswaehxw309ahx7um5wghx6mmd9uq3zamnwvaz7tmwdaehgu3wd3skuep0qy2hwumn8ghj7un9d3shjtnyv9kh2uewd9hj7qghwaehxw309aex2mrp0yhxummnw3ezucnpdejz7qgmwaehxw309aex2mrp0yhxummnw3e8qmr9vfejucm0d5hsz9mhwden5te0wfjkccte9ec8y6tdv9kzumn9wshsqgx9s2hh3hl5gfcqa3v7y9ux2v48qaxqp05t0v02exymha3xnqrfese8dh0g's post. What order each post appears in is entirely irrelevant, because they are unrelated posts. If nostr:nprofile1qyt8wumn8ghj7etyv4hzumn0wd68ytnvv9hxgtcpzemhxue69uhks6tnwshxummnw3ezumrpdejz7qgwwaehxw309ahx7uewd3hkctcpz9mhxue69uhkummnw3ezuamfdejj7qg4waehxw309aex2mrp0yhxgctdw4eju6t09uq3wamnwvaz7tmjv4kxz7fwdehhxarj9e3xzmny9uq3zamnwvaz7tmwdaehgu3wd3skuep0qyt8wumn8ghj7ct4w35zumn0wd68yvfwvdhk6tcpzamhxue69uhkzarvv9ejumn0wd68ytnvv9hxgtcpp4mhxue69uhkyunz9e5k7tcqyrt8nv85e9yyxpmnq8yjqjqvn5hj6ykflfk3qdfwzd8trsyz9xkf5s3jppm' post appeared above nostr:nprofile1qy28wumn8ghj7ctvvahjuat50phjummwv5hsz9thwden5te0v9jkw6tn9e6hg7r09ehkuef0qy2hwumn8ghj7un9d3shjtnyv9kh2uewd9hj7qgswaehxw309ahx7um5wghx6mmd9uq3jamnwvaz7tmswfjk66t4d5h8qunfd4skctnwv46z7qg3waehxw309ahx7um5wghxcctwvshsz9mhwden5te0wfjkccte9ehx7um5wghxyctwvshszrnhwden5te0dehhxtnvdakz7qgnwaehxw309amk7apww468smewdahx2tcpzemhxue69uhhwmm59ehx7um5wgh8qctjw3uj7qpqckp277xl73p8qrk9ncshsefj5ur5cq973da3atycnwlky6vqd8xq34mxr7's post, it would not provide any benefit to the reader of either post, since they are unrelated. If the post DOES need context from another post, users will reference that post from within their post, as nostr:nprofile1qyt8wumn8ghj7etyv4hzumn0wd68ytnvv9hxgtcpz9mhxue69uhkummnw3ezuamfdejj7qgkwaehxw309a5xjum59ehx7um5wghxcctwvshszrnhwden5te0dehhxtnvdakz7qghwaehxw309aex2mrp0yhxummnw3ezucnpdejz7qg3waehxw309ahx7um5wghxcctwvshsz9thwden5te0wfjkccte9ejxzmt4wvhxjme0qyghwumn8ghj7vf5xqhxvdm69e5k7tcpz3mhxue69uhkzmr8duh82arcduhx7mn99uq3gamnwvaz7tmpdehkutnrdakhqat5v4ez7qpq6eumpaxffppswucpeysysrya9uk39j06d5gr2tsnf6cupq3f4jdq9xja5d has done with nostr:nprofile1qythwumn8ghj7un9d3shjtnwdaehgu3wvfskuep0qy0hwumn8ghj7mn0wd68yttjv4kxz7fwv3jhyettwfhhxuewd4jj7qg4waehxw309aex2mrp0yhxgctdw4eju6t09uq3xamnwvaz7tmhda6zuat50phjummwv5hsz9nhwden5te0dehhxarjv4kxjar9wvhx7un89uq3kamnwvaz7tmjv4kxz7fwdehhxarjwpkx2cnn9e3k7mf0qyghwumn8ghj7mn0wd68ytnhd9hx2tcppemhxue69uhkummn9ekx7mp0qyd8wumn8ghj7urewfsk66ty9enxjct5dfskvtnrdakj7qghwaehxw309a3xjarrda5kuetj9eek7cmfv9kz7qpq8ams6ewn5aj2n3wt2qawzglx9mr4nzksxhvrdc4gzrecw7n5tvjqn8un3y's beer post above. This is done because the author cannot rely on anyone who reads their post to have also read the post they are were to. They may not even be following nostr:nprofile1qyghwumn8ghj7mn0wd68ytnhd9hx2tcpzamhxue69uhhyetvv9ujumn0wd68ytnzv9hxgtcpzemhxue69uhkummnw3ex2mrfw3jhxtn0wfnj7qg4waehxw309aex2mrp0yhxgctdw4eju6t09uq3xamnwvaz7tmhda6zuat50phjummwv5hszrnhwden5te0dehhxtnvdakz7qg6waehxw309ac8junpd45kgtnxd9shg6npvchxxmmd9uq3kamnwvaz7tmjv4kxz7fwdehhxarjwpkx2cnn9e3k7mf0qy0hwumn8ghj7mn0wd68yttjv4kxz7fwv3jhyettwfhhxuewd4jj7qgdwaehxw309a38yc3wd9hj7qpq8ams6ewn5aj2n3wt2qawzglx9mr4nzksxhvrdc4gzrecw7n5tvjqz7mzr9, after all. Though... that is admittedly unlikely, since almost everyone on Nostr follows him.
Indeed, chronological order is only one among many ways that microblogging posts can be ordered. All sorts of algorithms are being developed, and many are already available, for users to choose how posts ought to be prioritized in their feed. Algorithms are not a bad thing. Lack of choice about what algorithm you want to use is one of the biggest issues with centralized social media, and one that Nostr is aiming to fix.
It is entirely possible that you could create your own algorithm that arranged posts in your feed so that you could view all the posts from those you follow that were posted in the last 24 hours, but with a reverse chronology, so the oldest was at the top, rather than the newest. The most likely clients to allow you to do such a thing right now would be Primal or Coracle. I don't think they have that particular way to order notes as an option yet, though. It could probably be done with a DVM feed, which both of those clients also support, but I have never tried to create one of those myself.
In general, though, microblogging follows the same ordering of events as long-form blogging. If you go to a blog site, the most recent blog will be displayed at the top, and you can read a preview of it before deciding if you want to click into it to read more, or you can scroll down to see older blogs. Microblogging usually doesn't have a need to only show a preview, since posts are intended to be relatively short, but for posts that get a bit lengthy, clients often do the exact same thing as long-form blog sites, displaying a preview and giving the option to click into the post to read the rest if you want.
Therefore, most users expect that a microblogging app, if the posts are displayed chronologically, will put the newest posts at the top, and older posts at the bottom.