Reddit appears to be blocking VPNs (unverified)

I’m on iOS 17.1.1 using Safari. I also have Proton VPN enabled in the states but if I try to visit any page on the website I see this:

If I disable it, the page will load.

Edit: as per a comment, this may not be a VPN only issue.

Additional edit: Reddit has written an official post stating it was an issue after production code deployment and was reverted