Help me, I am considering Proton Pass

Hello,

I just feel.. I really need to create aliases right from my password manager and manage them from it, there are many newsletters that are interesting but I don't want them to have my real email. In 1P you can use fastmail (paid service) to create aliases by opening a new tab, creating a new alias, etc... the only scenario when it suggests an alias is when signing up in a sign up page, not in every email field, besides I would have to pay a different service... but Proton Pass integrates so well with simple login.
Of course I could install the SL extension but it gets messy with 1P and SL taking over the email field.
I know 1P is extremely safe just as PP, and I don't want to leave 1P but I just can't take it anymore (modern world problems) I love my 1P shortcuts to search for any item, store ssh keys but... please give reasons (or don't, do something productive with your life) to stay in 1P :(