Evil or the extensible vi layer is super popular and improves the one area that emacs was lacking
i prefer the emacs keybinds but have never seen peeps chat shit about it
I flip flop between emacs and Thunderbird
I use protonmail and both work great
Integration with protonmail calendar and drive either is poor or non existant, but I don't use/care about those features anyway
In real life not at all, online though it ranges from friendiy banter to elitist peeps bickering about package managers, those guys can be ignored.