Wether it's due to server or client, Proton is not option.
There are free Telegram clients, there is no way I will ever register with Telegram service.
I am extra harsh of Proton because I reject the concept of proprietary security. They trumpet privacy and security but tell people to trust them for secuity, they can't release server code, but they want everybody to trust that their servers don't have a back up of account info like keys or backup access to account.
I don't use Signal for the same reason, only Molly, and I refuse to install Signal on computer.
How can YouTube interfer with adblockers in Firefox/Librewolf/IceCat?