i don't see a "new" version of studio. ie, nothing to roll back to @ steam (ie, 2021.12.06 is current)
looking at the ide.exe install @ C:\Program Files (x86)\Steam\steamapps\common\AppGameKit Studio and it has a 02/04/22 date... so?
then, rummaging around and i found C:\Program Files (x86)\Steam\steamapps\
temp\1024640, there's and ide.exe that shows a 12/06/21 date which i pasted into C:\Program Files (x86)\Steam\steamapps\common\AppGameKit Studio (after renaming the 02/06/22 exe) and it seems to run without launching steam?
otherwise, this might be a steam thing? ie, are they "patching" apps? they are constantly trying to keep "hold" on things, so...
and, why the "temp"/backup version? is that normal? i have only 2 steamapps\
temp folders and the other one was empty (i don't use any other steam stuff beside studio and classic so dunno).