That’s odd, must be something specific in the scene, perhaps a material configuration it doesn’t like. If it was me I’d make multiple copies of the scene and try deleting things one at a time to isolate and identify - but I get that not everyone wants to bother with that kind of thing.

Then again it could be something in Big Sur as I haven’t had any crashes in Catalina at all. I’ve not got a Big Sur installation I can test on as of yet as I’m trying to hold out for newer Apple Silicon Mac (M1X or M2 as the M1 is about on par with an iMac we have).