I am looking through these issues and I cannot say that I can relate on almost any of these. Sorry to hear you have been having so many issues!
I do plenty of gaming and cannot think of a time where I have had GPU driver issues (despite the fact that I have Nvidia graphics on 3 out of 4 of my systems, which is supposedly more problematic).
My bluetooth works fine, and it has been literally years since an update broke something, bluetooth or otherwise (which I cannot say the same for Windows on my work computer).
I use KDE connect, SFTP, and SMB servers and I have never had any issues transferring files between Windows, Android, and Linux. What do you mean about that? (seeing other replies, it sounds like you are using iOS. That sounds like that may be an Apple problem and not a Linux problem, because Apple tend to be terrible about playing nice with other ecosystems)
The scaling is the one point I can sort of relate on. I think there is still some work to be done regarding DPI and scaling on Linux, but it’s not enough of an issue to make me want to switch operating systems.
As for GNOME issues and window decorations, that sounds like a GNOME problem. GNOME does things very differently to all of the other DEs and forces programs to manually define their own window decorations rather than allowing standard default icons like other DEs, so my understanding is that GNOME in particular tends to be a source of constant headaches for Linux developers.
And I’m not some sysadmin or CS major. If I have a problem, I do a web search. If I can’t find it there, I make a forum thread. I don’t post a rant saying that Linux is a bad OS, lol.