Monzo should add PayPal Credit to the list of accounts that you can link to your Monzo account so you can view it alongside all of your other linked bank accounts and credit cards within the app.
I’m not sure PayPal even has any part of open banking access baked into it, could be wrong though.
You can view your PayPal account with Monese. PayPal credit I’m not sure.
I would definitely be in favour of this if it’s feasible. The interest free periods offered when buying stuff mean I’ve used them a few times in recent months. It feels like a credit card in all but name.