It depends, some better Bluetooth headphones (like the Sony WH-1000XM family) support protocols other than SBC, which have a lot higher bandwidth.
eco_game
For me I'd just say oh well, gotta fix it when I'm home again.
Otherwise I'd probably write some script on the server, which reboots my router when the server either doesn't have internet anymore or can't ping itself.
I like your spirit, but I don't think a Chinese equivalent to Google Play Services would be more desirable
AFAIK you can enable the snapcast server and then use an app like SnapCast to stream to your mobile devices.
This program is a client for the very solid Tvheadend TV streaming server. Tvheadend supports pretty much any source you can think of, but is a little more complicated to setup.
Tvheadend is a selfhosted service meant to be run on your own server with your own TV dongles / IPTV channels / etc.
If you only want to watch TV on your PC, doing so with something like Kodi is probably a better idea, as Kodi also supports USB tuners and is simpler to setup (doesn't require a separate server).
I really like Pop!_OS, AFAIK it doesn't have any telemetry. It's basically a Ubuntu fork but without the stupid Ubuntu stuff, and they're currently even working on their own Desktop Environment.
If the main battery isn't "meant to be replaced", it will often act as the CMOS battery (e.g. MacBooks have been doing this since roughly 2008).
+1 on OnlyOffice, it has 1:1 formatting compatibility with Microsoft Office. Unlike LibreOffice, it doesn't have to translate documents between odt and docx in the background.
In the same vein, OnlyOffice has poor compatibility with odt files etc.
I was very disappointed with the (default) Camera after switching to Graphene, luckily you can just download the Pixel Camera (including all the Pixel optimizations) from Play Store on Graphene OS or download it as an APK bundle from some other sites (downloading the normal APK won't work, it has to be the bundle).
Yesss fcast looks incredibly promising. Sadly the only app implementing it seems to be GrayJay, I really hope it will catch on more.
If other people want to try:
NPR test
ABX test