I am a long time user of Proton (5+ years, Unlimited user) services. I am also a long time user of 1Password (since 2016). Understandably I have hundreds of items currently in my 1Password account, and a safe work flow on my devices with that.
Would it make sense to start moving those entries to Proton Pass (as it is included) and be off a bit cheaper, or keep them separated as to not throw all the eggs in the Proton basket?
If you're already paying for proton unlimited I don't see any reason you shouldn't go for it.
Also, forgive me if I'm wrong, but your post makes it sound like you don't know, you can just export all your passwords as a file and import them into proton all at once
That i do know, it's more, the features in Proton Pass, and wanting (or not) a bunch of different services at a single company. And daily usage and support (Linux clients etc).
There have been cases where people got locked out of their Proton account, it may be a good practice to actually keep your log-in vault on a separate service just to avoid that headache.
Yes, it is concerning. I don't remember where I read this, but someone was saying that their account was falsely flagged for suspicious activity and they lost access to everything, including Pass. Very similar to what can happen on Google. I don't want to say much more details as I might be misremembering and don't want to spread misinformation.