I second @Hellmo_Luciferrari@lemm.ee 's suggestion of Arch/KDE. I cannot think of a time when I have had to go outside of pacman/yay or setup a custom repo. I don’t use them personally, but the AUR even has -git versions of many packages if I needed to have the absolutely down-to-the-minute latest version of something, but even the official repos are rarely far behind in my experience. Fractional scaling seems to work fine on my 2560x1600 display. VScodium works fine when I tested it, but I do not use it regularly enough to really have a strong opinion on it.
I second @Hellmo_Luciferrari@lemm.ee 's suggestion of Arch/KDE. I cannot think of a time when I have had to go outside of pacman/yay or setup a custom repo. I don’t use them personally, but the AUR even has -git versions of many packages if I needed to have the absolutely down-to-the-minute latest version of something, but even the official repos are rarely far behind in my experience. Fractional scaling seems to work fine on my 2560x1600 display. VScodium works fine when I tested it, but I do not use it regularly enough to really have a strong opinion on it.