Which distros have you tried? My experience was rough at first when I finally cut Windows out of my life a year ago. I’m on a ASRock B450M with a Ryzen 3600 and a 2070 Super. Started with Ubuntu > Mint > Debian > and finally settled on Pop_OS, and things have been rock solid. Most recently installed Cosmic desktop on another drive and even the 5th Alpha is playing Steam and Heroic games with few issues.
I know not all hardware is created equal, but my two cents are now that Valve has planted themselves squarely In the mobile Linux world, they’ll continue to pace the way on innovation and I wouldn’t be surprised if larger organizations continue to drive improvement. There’s no way they would just let that die. Linux gaming is going to have staying power.