it work via ProtonVPN
Discussion
What country servers? It won't load for me on USA Proton servers.
I'm connected to Proton USA-CO and using it right now.
If a certain USA server isn't working, somebody else might have been abusing ChatGPT from that server and got the IP address banned. Just try a different server.
I rotate Proton servers daily and I have had no issues with ChatGPT.
I'm using a Netherland server right now and it's working