I switched from Arch to Fedora in 2015. I don't miss anything from AUR. When I was on Arch, I used a bunch of stuff from AUR, but I honestly can't remember what I used.

So, it seems like it's worked out okay. I honestly got tired of using Arch and configuring everything. Things would break, and I'd have to figure out how to fix it. What broke the camel's back was when my window manager, awesome, broke. Don't get me started on the name 'awesome' for a window manager and how difficult it was to search for solutions to problems. By that time, I had grown older, and I just wanted something to work, and Fedora works fine for me.

I only used Arch (and AUR) to play around. I've been using Ubuntu and Pop as my main OS for years. I've never felt like I needed something from AUR.

I don't need the last software update right away and if I need it, I have PPA and flatpak.