Even on a straight outta TEMU DSLR you wouldn't break the shutter from doing that, doubt it'd even come with a prisma, if it was mirrorless and rested that weight atop the tallest point I doubt you'd even break the EVF, but you could make the flash shoe mount crack if it was all plastic on plastic which wouldn't do jack, but if it was some weird af hybrid going Hasselblad with the shutter being inside the very lens then yes: if it was an industrially heavy, guilliotine style weight that'd been a strangely heavy death-trap not even a badly written AI would have elected to use in a school.
Every week, the more I want to set up a squad all "consultancy bureau for mangaka on subjects they're not sure about but still hope to implement". This is nothing like the manga where the camera they used was a mirrorless model entire without a lens but still produced results, that got on my nerves.