I recall there was a thread a while ago discussing the possibility of per-snap ld caches, but it comes with a fair amount of complications of its own. In theory it could solve the problem though.
Realistically, I think the ideal technical fix here is at the Python implementation level, it’s just wrong to make an assumption that the cache is comprehensive, because it’ll disregard RPATH, RUNPATH, and $LD_LIBRARY_PATH, even when not running as a Snap.
