Can't you just pop the screen off and clean it? I had an iMac; the glass is held on magnetically and there are a dozen-or-so Torx screws behind the bezel.
No, that was an earlier design. On later iMacs, the magnets were replaced with glue. So to perform any service on the machine, the repair shop has to cut through the glue and after the work glue the Mac back together. Which, for a desktop, is pretty unforgivable in my eyes.
That glued on iMac design was really stupid for a desktop that uses fans. Even my older generation iMac with the magnetically held cover is too much of an effort to clean. And from the looks of it, this new Mac studio suffers from ur same issue. While you can access the fan and the heartsink, it requires too much fiddling and too many screws to make it easy for any user.