Use Gmail with Advanced Protection so no third party can access it. Gmail has an excellent anti-spam and anti-phishing filter. I use Tutanota for my extremely serious email. I have used Protonmail before but it's a bit too expensive for me.
Gmail & outlook, for me it seems gmail has better filtering for junkmails than outlook do
Nowadays i have specific accounts for working, gaming, communities etc.
The main account i have is leaked on tons of breaches gets junkmails but Gmail is pretty solid filtering them, i dont mind changing that
2 factor on every email + settings gone throught and its enough privacy/security for me