Depends on the client in all cases, there's a million ways your IP can leak, but at least everything is open source so it's probably honest.
If I write and read everything over my mailboxes, then nobody else gets my IP or do nostr:nprofile1qy88wumn8ghj7mn0wvhxcmmv9uq3zamnwvaz7tmwdaehgu3wwa5kuef0qydhwumn8ghj7argv4nx7un9wd6zumn0wd68yvfwvdhk6tcqyp7vx29q3hdj4l0elxl800hlfjp538le09epsf7k9zj59ue2y37qurn3cw8 and nostr:nprofile1qyghwumn8ghj7mn0wd68ytnhd9hx2tcpr9mhxue69uhhwetvvdhk6efwdehhxarj9emkjmn99uq3wamnwvaz7tmfde3x77pwdehhxarj9emkjmn99uqzq0vy9tlv6h3f8u5tvcnexdcy50acec2n42ga0y9tz8m2w5k5ffpd7zaucw have to pass that info on?
And any web client gets it, I suppose, so @hodlbod and nostr:nprofile1qyfhwumn8ghj7ur4wfcxcetsv9njuetn9uq3samnwvaz7tmxd9k8getj9ehx7um5wgh8w6twv5hsz9mhwden5te0wfjkccte9ehx7um5wghxyctwvshsz9thwden5te0wfjkccte9ejxzmt4wvhxjme0qy28wumn8ghj7un9d3shjctzd3jjummjvuhszxmhwden5te0w35x2en0wfjhxapwdehhxarjxyhxxmmd9uqzq9eemymaerqvwdc25f6ctyuvzx0zt3qld3zp5hf5cmfc2qlrzdh08ca8zv and nostr:nprofile1qy2hwumn8ghj7un9d3shjtnyv9kh2uewd9hj7qgwwaehxw309ahx7uewd3hkctcpzamhxue69uhhyetvv9ujumn0wd68ytnzv9hxgtcqyzsq3hh327t0h2dq6matqn5064cgj2zanl2stkj6s0lg4t2h5dty65pm0vv
What about Android clients? Does Freerse get my IP address nostr:nprofile1qy2hwumn8ghj7un9d3shjtnyv9kh2uewd9hj7qg5waehxw309aex2mrp09skymr99ehhyee0qyv8wumn8ghj7enfd36x2u3wdehhxarj9emkjmn99uq3zamnwvaz7tmwdaehgu3wwa5kuef0qydhwumn8ghj7argv4nx7un9wd6zumn0wd68yvfwvdhk6tcpzdmhxue69uhhqatjwpkx2urpvuhx2ue0qqs9z3873rl5y57xgz8w3888ltn02qwcgkvmck73gq2dprjgjkrattcgemw5v ?
Who all is getting it?