They closed off the website to unregistered in the UK too, last time I tried to access content it asked me for a license number (I don't have a TV license).
I used to follow topical comedy podcasts but they put a large delay in their publication cycle so they're no longer topical.
They also nag you to install the app. They seem often to just repeat the worst habits of commercial media.
They ask if you have a licence with a Yes / No choice. They don't ask for the licence number, which I'd be surprised if anyone in these islands could recall. Rather charmingly, they assume you will be honest in your answer.
The TV License check is purely an honor based system for now - you can simply say yes and no further inquiry is made, it does not ask for any kind of reference.
I suspect this changes in next few years once they finally decide on what TV license reform looks like, especially given the large drop in TV License receipts, but for now anyone can access in UK/via VPN, license or not.