Proton has some technical issues as well. Recently there was a day when email wasn’t working at all for hours, maybe even half a day. I’m paying for their VPN sub and using it for years and not going to move in nearby future, but if I was picking something now I would carefully consider other options. Never heard about those mentioned in thread though, if they are new I wouldn’t use them, I’d like something with good record track of at least one decade, better few decades.
ZeroNet? Tor Network? I2P?