Not long ago, Proton had a news blog or email I cannot find that said ProtonVPN had now expanded support for watching streaming services and content like Disney+, NRK etc in Norway, and I see this support article up: https://protonvpn.com/support/watch-nrk-with-vpn/
I always use Proton through WireGuard instead of through the official app since I use a custom DNS setup to avoid ads etc.
Do you need to be on Protons app / DNS to get streaming to work?
I wish Proton allowed for custom DNS in their iOS app and I wish they said something about streaming services and geo blocks in the app.
Check if you’re leaking dns requests. I’ve had problems with my router itself leaking my info before. Just go on ipleak.net or similar and check what sites can see of yours and troubleshoot from there.
No I’m not leaking anything according to any tests, although I’m aware there has been some reports of proton vpn leaking IPv6 dns while on my setup previously.