I have the exact opposite opinion. I use proton business together with their email, vpn, calendar, drive (on macOS), password manager etc. and switched specifically because of their encryption, data protection and fulls-size feature bundle. Plus, I migrated vom Office365 and it became a shitshow to manage and was full of bugs. And I had a separate bitwarden subscription, and a separate VPN subscription. Now it is one package, much preferred.