I have two UR10e’s to tend CNC machines and I am constantly doing new parts which means new programs which means more mess in the folder. From the looks of the file names I would guess it creates new backup every time you hit save. I haven’t taken the time to test it but may at some point.
This is a real issue and needs to be addressed.
Filling up a hard drive with data is not good for performance nor health of the system.