Just use nobara. Arch isn't really for casual users who haven't used Linux. Download steam and enable steam play for all titles in your settings. Proton ge isn't necessarily always needed, but if you want it just download protonup-qt to easily install it. Use lutris for non-steam games, and optionally heroic games launcher instead of lutris for epic games. You make Linux sound complicated by separating every little step, as if multiple of those aren't windows things too...

After a fresh nobara installation, and installing most recent drivers, I was able to download and play my steam games in an hour, hour and a half maybe. On windows I have to run a debloat script to optimize performance, make sure drivers are up to date, download the steam installer, click through the installer, download my game, then look up why random windows background services are randomly taking up CPU space. On Linux I just open discover, download steam, enable steam play for all titles, then download and play my games without any preinstalled apps and unnecessarily resource hogging background services.