'moved over to a newly-registered domain"
Was this new domain in use before ? If yes, check if the domain itself was blacklisted earlier. Sometimes, domains are used for scam/spams and then someone else registers it only to find out that google is blacklisting it.
Thx I’ll check. I just looked up Wayback Machine for it and don’t see anything but it’s a good direction to look.
Update: I requested review in search console and was approved.
The approval happened silently so I had to manually check.
All good