FYI I am running almost a weekly Q&A session on SN like this

https://stacker.news/items/1335830 where you can ask these kind of questions. Nostr is not very good fur that but I will try to answer you, even that all of them are already answered in my guides.

1. You can put it in "persistent mode" and the LND service is running in background like any other desktop node.

2. Yes, you are free to open as many channnels you want, it is not a wlled garden like Phoenix. Also the path finding is on your device, that means only you know the peers, not like in Phoenix. Read more here: https://docs.zeusln.app/for-users/embedded-node/privacy