There was recently a big memo about that. I have completely separate work and personal devices. (This was written on a personal device.)

The only thing that goes in from personal -> work is music or random home office photos.

The only things that go out from work -> personal are public résumé-level performance reviews, tax, and benefits information.

Exceptions on work devices include Github and streaming services, but otherwise not much else should be co-mingled. Everything else stays in its own domain.

(I don't use personal social media accounts so I'm the wrong target audience. Personal FB and Insta accounts are linked to work, and Github if you have one.)

Are the accounts tied together though? Facebook still knows behind the scenes those are related accounts and that bothers me.

They don't have to be anymore (as of fairly recently).

I'm always a little shocked when I see someone who isn't keeping personal and work devices (and accounts) very intentionally separate.

As far as I can recall, I did not use my personal FB account while working at Meta last year. Some tiny detail of it may have been imported somewhere, but I definitely had a totally different account for Workplace.

Contingent workers, that's possible.

FTEs generally require an FB account to start the tech device provisioning process.

i don't think that's true anymore after project meiosis

They used to require linking a "personal" FB account as your employee account but recently (as in, like, 2021 or later) have a system that no longer requires this (including FTEs). Note that you could always create a throwaway personal FB account to be your employee account (and this is what I did).