[ajyotirmay]

Not a clue about what you're seeking. I'm using mailbox, and thunderbird as a client for my devices (android, windows, linux and macos).

It works. For E2EE, I have GPG setup on all of my devices. It costs me a little over €1/month for paid account as I use my own domain.

The experience has been good, and something I absolutely advocate for and promote.

[broken-kebab]

Thunderbird is not something one can recommend to a non-techie friend as a replacement for GMail. At least the last time I checked on Android, it required additional tuning for pushes, it worked poorly when there was too many messages in inbox (which is what almost everyone coming from Gmail has), didn't provide text formatting.