System Files Broken due to update and restart with full storage

it is ususally reliable just slow, is that a major issue? I dont know how to load snapshoots if I am honest when I checked How to restore a Snapper root snapshot on an unbootable system

I tried doing it but first of all mine wasnt in run but tmp and the command he used to find the snapshots didnt show but when I search for snapshot in dolphin I get following results:

I will try the approach with the snapshots, if that doesnt work I will put one of my unlimited system cards into a 5g router and try it that way. My telekom internet works without any issues