vislower
Yes. Also, consider that you only need to make a single error to link the accounts for good.
Beyond possible direct links, there are many crumbs that could be left behind (as mentioned above). Fingerprinting is an insidious thing, difficult to counter - much foresight and care at every step and still no real guarantee you didn't make an error in judgment with opsec.
For most concerns, including surveillance capitalism, I'd suggest to start a migration to other, more respectful services (at the very least, non-MAGFA)
I've largely accomplished such a move (at times with slow progress), and would encourage you to make it as well. It feels very satisfying to not rely on those who treat you with utter contempt.