I expect to have a lot of difficulties with this. I have to constantly change servers, especially while using Firefox or Brave. I discovered that using Chrome makes the problem less acute.
Is this prevalent among all users?
Haha, yup, I’ve totally been there! 
It’s like ChatGPT and ProtonVPN just can’t be friends. I run into the same issue when using Firefox and Brave. Constantly having to switch servers just to get it working. Super annoying. Chrome does seem to work better, but I hate having to switch browsers for one task.
Yeah, it’s a thing. ProtonVPN’s IPs are probably flagged by OpenAI (which runs ChatGPT) as suspicious, especially when you’re switching between servers frequently. I’ve had better luck sticking to one specific US-based server for a while. Constant server switching can trigger more issues. 
I’ve noticed the same thing, and I mostly use Firefox. It’s like some servers just don’t play nice with ChatGPT. But oddly enough, when I switch to Chrome, it’s smoother. Might be something about how each browser handles VPN connections. 
It’s not just you, I had similar problems too. It’s probably the way ProtonVPN’s IPs are handled by the websites ChatGPT relies on. Could also be that Firefox and Brave are more privacy-focused browsers, so they might be blocking certain requests more aggressively. Chrome is a bit more forgiving. 
Yeah, Chrome has less trouble with stuff like this because it’s more widely supported by most platforms. I wonder if Brave and Firefox’s privacy settings are getting in the way. Maybe try disabling some of the privacy shields in Brave and see if it helps? Might fix the issue without switching browsers all the time. 
Good call, I’ll try toning down some of the Brave Shields. I really like using it over Chrome but the constant VPN-ChatGPT battle is killing me. Hopefully, that helps!