I use all of their stuff but I am going to take the advice of a dude I follow that I like: convenience is a killer.
Meaning it's good to use their products but what if one of them gets compromised? Like their password manager. All your stuff is in there so you're fucked.
I'm going to split between some things to that I spread out my risk profile. Is it a little overkill? Sure but it's good to have some things spread a little bit.
I am enjoying the proton stuff for sure but I'm also realistic about needing to stay vigilant.