Protonmail feels like Gmail!
Both Protonmail and Gmail have similar features and can be used on any device. Protonmail also has many more privacy settings and comes with aquivalent for calendar, contacts, drive plus a wonderful VPN option!
ProtonMail has to a clean, minimalist design with separate boxes delineating different areas in the screen ui. I like this a lot and find it easier to look at than gmail. It feels organized and easier to navigate.
I like it so far 🙂