Hello there,
If this also occurs on Medium, it’s potentially the cvar r.Lumen.DiffuseIndirect.Allow. Scalability 0 and 1 set this to 0.
It’s possible the 3060 and 3070 are getting assigned a lower scalability.
I haven’t managed to get a repro case that’s quite as severe as the one you show, so it may be a different issue.
Best regards,
Chris