You'll need some kind of database if you want recommendations... Listenbrainz's data is open, so you might find some self-hosted service that uses that database and local history for recomendations, but... why not just contributing your scrobbles to that awesome project?
They do require an email for signup, but IMO they are trustworthy and you can just use some anonymous email if it's important to you to really stay anonymous.
Governments (and the public sector in general) are treated way worse by companies than private customers who can far more easily switch to a competitor or influence others to do so
Copying back the files to the right partition/directory works, but if you didn't backup the owner and permissions for each file it's gonna be a pain to restore those.
After reinstalling, you can compare your new system with your backup to see what changes/configs you had made
You should be able to run Lineage on the shield (double check the specific model)... maybe you can try that and re-flash the stock OS if it doesn't work for you.
That's a great tip! I didn't know lineage supported Android TV on SBCs
As for Netflix on Lineage: it does work (at least w/ microg - I just tried on my phone), but you won't find the app in aurora store so you'll have to source it on apkmirror or the like.
As much as I dislike Google spying on my relatives, I'd rather them be spied by Google than by some Chinese entity (BTW: their spying would probably not be on top of Google's)
You are 100% right: netflix not being open is less than ideal, both from a freedom standpoint and for the privacy implications of it.
However, my 70+yo relative does not care about FOSS or even about their own privacy for that matter... since I, however, do care about their privacy, I'd like to pragmatically find something that may be better than a chromecast privacy-wise, while not being so much worse (or radically different) from it that they'll ask me to "put the old thingy back - I can't use this nerdy shit" :)
Death warrant? Maybe, but I expect companies (maybe not the EU, but - let's be frank - probably the EU too) to go back into X as soon as they feel they are done cashing in this virtue signaling.
There were plenty of reasons to leave twitter before this idiotic tweet from Musk (reasons due to twitter's action as a company, and not just Musk's drunken posts) and they were all happily tweeting and advertising.
Is this drop that breaks the camel's back? Maybe, but I wouldn't be holding my breath.
US only (typical)