I bought some GameStop when it was $10 but chickened out and sold it a few days before it went to like $420 a share cuz I thought I was being baited by wallstreetbetters. I only later found out a close friend of mine who is a generally responsible investor was heavily in that and sold at like $200~ to pay off all his medical debt. He's not rich either, but financially better off than before that happened.
I don't mess with stocks now.
All I do in KDE is set it to Breeze Dark, set my taskbar to dock + autohide, and change media keybinds. There's tons of options but you don't really have to touch any of them. Default is fine.