I have not installed any Proton. I enabled Proton within Steam settings.
Open Steam - then click
Steam on the upper Menubar. Select
Bottom of the list -
Enable Steam Play for all other titles.
Run other titles with (Drop Down menu)
That is all the configuring I have done.
But - I am not a rabid gamer and only play a few games and rarely have time to do that. But, they all work...