pr-13470-479750 vs. pr-13470-6a1603 / mtl-osx-m1 / f-zero-rain

pr-13470-479750 (479750d1) Diff pr-13470-6a1603 (6a160373)
Failure 50a936466e39eee146dea40ca1cda7e42862cb9a
Failure 5579b87aeb265d5f025b65766d5e7c70bbdcf476
Failure 9eeec5742e867298a0e2a10c8f6c3f98af40809b