you need to either edit configuration files (these are mostly inside the .config/
directory, which is inside your profile (home) directory) or use graphical applications such as Gnome Tweaks for tweaking GTK themes and stuff
btw, you should probably ask in one of the Linux-related communities (!linux@lemmy.ml, !linux4noobs@programming.dev, !linuxquestions@lemmy.zip as examples) and don’t take my word for this!!! i’m very dumb! (if you avoid this warning i will be forced to reply the best i possibly can)
Fedora → Ultramarine → Arch Linux → NixOS → dual booting NixOS + EndeavourOS → dual booting EndeavourOS + something I don’t remember the name of → something I don’t remember the name of → NixOS → SolydXK → NixOS → CROWZ → NixOS → Ultramarine Linux → FreeBSD → Devuan → FreeBSD → Arch Linux → Parabola GNU/Libre → Ultramarine Linux
All of that happened around September of the last year and this year! I also did not count how much I stayed in those!
Fedora was my first, it being recommended on somewhere made me install it on a USB stick, After doing so, I did the installer without knowing what it was for and ended up purging my hard drive. I did not think too much of it, and continued using it until I found about Ultramarine Linux; I was tired of the Fedora login loop that I had, so I decided to just install Ultramarine, and guess what? It happened again! I was annoyed (angry), so I installed Arch Linux instead. As expected, I had to fix stuff from time to time, which was tedious. Er, I decided to install NixOS and — Okay, I’ll end it here. My hands already hurt from all the typing and I didn’t think it would take this long just to write this thing. Feel free to ask anything, but be aware, I do not remember a lot about this!