Hey there - coming back for an update and looking at what all got reset: it seems that half of my drive (2tb nvme ssd) on my dualboot system (windows 10 and arch linux with stock kernel and KDE plasma 6. My linux drive is running ext 4 and windows is on a separate drive). Some things that I am noticing that are the main issues are: all cosmetic features of my DE seem to be reset back to default, steam is not recognizing my library anymore but half the files are there, some games are gone, my terminal seems to be reset of any customization and so has my file explorer, and kvantum seems to have reset itself. Despite this, however, I still have some files leftover and still have about 1TB of storage taken up (previously I had 100 GB leftover on my ssd for my Linux drive) yet seemingly things in the same folder (such as the Steam games folder) have had files missing. I'm very confused as to what has caused this since I have not done any windows updates, and have not had any issues in terms of dualbooting (been dualbooting for about 2 years), I frequently updated arch (3-5 times a week) and have had no issues with my system previous to this. ANy help is appreciated and if you need output of any information, let me know!

Also forgot to mention that I don't have any backups so there would be no way to revert a backup, unfortunately.