It looks like it never installed the roblox studio package to where it was supposed to be I think it could be due to privileges a.k.a run as administrator the studio installer.
The registered handler C:\Users\lapet\AppData\Local\Roblox\Versions\RobloxStudioInstaller.exe for roblox-studio does not exist
Does the ROBLOX player work for you?
When you uninstall ROBLOX make sure to delete all files related to ROBLOX studio settings.
This issue also happens to me after buying a new computer. I am on version 23H2. I have been told to wait for a new Roblox version so that it fixes itself but this makes me doubt of the compatibility between Windows 11 and Roblox as well as the overall stability of Windows 11.
I am not sure if this is also the cause, but my friend list on the web is refusing to update.