Syrup

Right, but still quite affordable compared to similar solution with Proton IMHO

Yeah, best combo for me too

You can try Frost, a web wrapper for Facebook: get in on F-Droid here.

You can also run it isolated using Shelter, another app on F-Droid, get it here.

Yep, update at night is good

Same for me, XFCE is light, stable and efficient. I believe that's the reason it's chosen for Debian as default DE

According to their Wiki, other Distros (including DE) are not supported/documented and if you do it's at your own risk. Personally, I wouldn't dare trying that.

Dell provides XPS laptop with Ubuntu on it. It works great and Ubuntu can be replaced with other distro ( I did successfully tested Mint and now Debian 11)

Own server but with very few things running on it...

Wow, great... Didn't know about needrestart

Works OK but makes your connection slow as hell... Not really useful for daily usage.

I don't think so, mostly it's hardening, and few security related software, all FOSS

But you'll need much more RAM, 8 GB is a bare minimum...