Any problems I've had have been my own doing or a weird Nvidia driver issue. Having said that though, I've had very very few issues, it has been rock solid!
I've got a couple of packages from the AUR but I don't recall ever having any issues with any of them.
The only real "issue" I've had has been related to the Linux Kernel on my main machine (Ryzen 5 3600 & Nvidia GTX1660 TI). For some reason, only the LTS and mainline kernel work, if I try any other kernel I get an error (something to do with Nvidia and my GPU).