Regular bank transfers from Paypal to Revolut should work. As long as you’re using the account details as shown under local.
I suggest once more to search this forum and contact users directly that use Revolut and Paypal in the UK and discuss with them how they set it up.
The details you postet here don’t seem to tell a consistent story. Because Revolut’s support chat suggests that Paypal said they know that a transfer already wasn’t accepted by Revolut but won’t bounce back (and support is right, that’s just not how bank transfers work, there is no back and forth communication between sender and receiver.)
And then there is the other text snippet that you posted where someone else says Revolut won’t release the funds and you should use the card instead, and that is also true, but something completely different.
The only problem I now can imagine is that you tried a direct debit, Paypal noticed that the account does not support this and blocked all transactions for this account, also outgoing transfers.