Exactly what I said.

...wait for it... The pruning will work just like it did on testnet, it's just slower when being bombarded by a shit-ton of bad actor nodes instead of just a few with known bad actor capacity on testnet... Orphan blocks become short orphan chains, but get pruned and auto-re-indexed. It will lag... Maybe as long as 2 hours. Longer than that, check your version...