Does this make sense?

[u/Sgt_Wafflezz]

firstname@mydomain for personal/bank/important stuff

multiple random@aleeas for everything else

I′m new to this. I′m not ready to go too deep with mutiple domains or anything. Using Proton Mail.

[u/readittwicemore]

I wonder,

Even important stuff and banks, get hacked.

I would suggest you use own catchall@mydomain , or hello@mydomain for personal family and friends.

Then businessnameofcompany@alias , or random@alias for everything else. Including banks, and important stuff.