https://web.archive.org/web/20240419051951/https://www.moneycontrol.com/news/technology/swiss-authorities-intervene-proton-mail-not-blocked-in-india-12672231.html

We would need a trial with a control group to know if it actually works or not. The trial referred to in the article only had two groups that received different versions of the same treatment.

Proton VPN advised me to switch to a different server when one is blocked by a website. That usually works for me. I haven’t had the username and password problem though. I think the only sites I’ve had to turn my VPN off for were credit reference agencies.