Thanks for the clarification but seems I wasn’t clear. I know how to start a game without Steam and how .desktop work (made some before). What I meant is rather can I start Steam itself to avoid their welcome screen and go straight to my game library? This way I would avoid their “suggestions” which are, in fine, ads (and thus what I imagine they collect private data for).
There are many tools for Linux that do a lot of different stuff
I remember there were some that allowed running games straight without steam and maybe even creating shortcuts, but any of those is a headache to setup, I mean, to run a game without steam you need to do 15 manual steps, to create a shortcut 30 manual steps
Edit: maybe something has changed, I don’t use steam a lot, and I used those tools some years ago
P.s. the coolest tool for me is the app for extracting tye session with all those steam guard and etc