I have this exact GPU and can game everyday on my Linux computer with very good performance, so I am not worried for you, you will find a way to fix it. I don’t know about this game in particular but for each game I install, I always check protondb website for other user experience on the game and copy past the commands other users recommend. Then I paste the command in steam settings for the game. Moreover I use feral gamemode which helps improving performances, and proton ge.
Don’t know what games you are playing, but I game myself quite heavily and doing it exclusively on Linux. Steam proton has changed a lot of things for Linux gaming. Only issues are with anti cheat. So if you are playing single player you are good to go. Multiplayer can be difficult, it depends on the game. I have 200 hours on Apex in Linux.
I love those things. In some years we will maybe see someone built a calculator like what happened in Minecraft.
Dev difficulties are still there and not the same. Don’t understimate netcode, or just simply gun feel, balancing, map design, sound design. Those are very difficult to get right even if you do not have to write a story or code NPCs. Each games have different challenges.
I am surprised Factorio has not been cited yet. This game is addictive!