I just saw this in a post today about manjaro, it seems like endeavor is the better choice if you are concerned about stability in the long term: https://manjarno.pages.dev/

The only game I am having issues with is fallout london. For some reason, even with a dlss upscaler mod, it runs at half the fps that it does on my windows :(

I usually run the installers in bottles if it is a repack, then you can add the installed program to steam and make it look nice with steamgriddb. bottles lets you run just exe as well. if you name the game in steam to the steam id #, you can even get the official and community controller layouts