I used to do something similar. But I’ve learned the hard way to not complicate your privacy set up especially with your password manager and your 2FA.
I still maintain that using Proton Pass for it all including passkeys is the way to go for 98% of the people.
Learn from my mistakes, even if you believe your set up is bullet proof and that you’re not going to forget credentials or lose access to them in any other ways. It will inevitably happen. Perhaps not anytime soon, but at some point indeed.
Anyways, that’s my last two cents on the matter.
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This comment is not only directed at you but anyone reading too.