FIXED IT!
I just found out for myself caus I got really annoyed by this and searched a little more for myself:
The “recent file” information seems to stay in the version folder under C:\Users...\Documents
I just deleted the whole “Twinmotion2025.1” folder after closing twinmotion and epic games launcher. Afterwards I restarted the twinmotion software again and it recreated the folder but without the former “recente file” info.
Hope this helps others as well.
Cheers
C.