I also have the UR20.
Samueru
I use my ksc75 daily with the headphone jack.
Try using yuzu-mainline-git from the aur and change your compile flags (edit makepkg.conf) to match=native mtune=native and O3. That gives a 15% boost in totk.
Also use zram instead of zswap as that that causes terrible stuttering on yuzu if you are short of ram. The usual recommendation is to use zstd compression but I can tell you that lz4 performs better on yuzu.
"sudo pacman -S zram generator" then "sudo nano /etc/systemd/zram-generator.conf" and paste this:
[zram0]
zram-size = ram
compression-algorithm = lz4
swap-priority = 100
Also make sure you are running gamemode with yuzu. Same with steam games.
I moved from a gtx 1060 to an RX580 and it has been terrible, recording in obs is horrible to the point that the cpu yields better results and now a recent kernel version broke the power meter on all the polaris gpus.
As long as you only keep the Manjaro repos in your system, it is like using it on Arch, which even you Arch the Aur isn't perfect.
Because the Manjaro repos don't sync at the same time with the Arch repos, you might not be able to install/update some Aur packages as the version of X dependency might not match during that time.
But literary, Manjaro has been the most stable distro I've run, even more stable than Arch that recently broke on my system and required manual intervention because of their recent changes on their repo migration.
Try manjaro, and hear me out here:
Manjaro is actually the only distro that I would recommend to a beginner, actual beginner in this case is someone that should not be running a single terminal command to get their system to work (which is what people are expecting to do when they tell you to use Endevour or CachyOS lol)
WIth ubuntu/debian based distros you will either have to deal with installing flatpaks/snaps, which come with their own set of issues like not following the system theme, using the wrong system font, issues accesing the internet, issues accesing the home directory (yeah steam flatpak can't be placed in the home directory lol).
You could try adding PPAs which is not something I would recommend a beginner to do.
Also some games like BeamNG hate having irqbalance, which usually comes by default on debian based distros.
On the other hand Manjaro already ships with pamac which is their GUI store that supports everything, including Aur packages which means 0 issues having to deal with broken permissions or theming if you want to install apps that are usually not found in the official repos.
Their own official repo even includes brave-browser and fastfetch, two apps that I use that are usually very hard to find in other distros.
Isnt fedora like the last distro that doesnt symlink /bin and /sbin to /usr/bin?