crash – After uninstalling Lutris, trying to open steam blocks the computer

So I installed Lutris to play MTG Arena on Ubuntu. Did not work, so I gave up everything and uninstalled everything, then cleaned it, then deleted all MTG files. Now, every time I start steaming or trying, the whole system crashes, forcing me to suddenly restart.

I have a pastebin log here and termbin from an accident log in / var.

What can I do to solve this problem in addition to the reinstallation of steam?