I posted the standard recovery procedure for the kind of corruption described here. It seems to be being ignored.
I think the issue seems to be that the OP doesn't have a corrupted wallet to try to salvage... in fact, they don't seem to have
any wallet due to the fact that, as shown in the youtube clip, Bitcoin Core seems to delete the "corrupted" wallet.dat. That is to say, the renamed "wallet.TIMESTAMP.bak" is just removed and a completely new wallet.dat is created in it's place.
Reading through the associated Reddit thread, it would appear that whatever "recovered" wallet files that the OP has managed to find using recovery software are not the correct wallet files.