I managed to get into grub after editing the config in yast. I booted into a current snapshot and deleted most old ones, including the old 835.
Still, my disc usage is at 118 / 120gb. I cleaned up all zypper stuff that is orphaned and unneeded.
My snapper list output is now
0 │ single │ root │ current 1828 │ pre │ Fr 16 Jan 2026 17:05:39 CET │ root │ 1.76 GiB │ number │ yast snapper 1832* │ single │ Fr 16 Jan 2026 17:17:41 CET │ root │ 272.00 KiB │ writable copy of #1807
And some snapshot from all the cleanup. Looks like the #835 entry before and I kinda get the feeling ChatGPT led to wrong conclusions.
So now I need to find out why my disk space is still fucked :( Starting with btrfs cleanup I guess. Do you have any suggestions?
btrfs scrub it is, but it did not do much, but i followed some clean up tipps and could free 34gb of stuff, so for now I'm good I guess :D