grapheine
Naw. Read this so you understand what you're using, it'll make it make sense:
https://grapheneos.org/features#sandboxed-google-play
https://grapheneos.org/usage#sandboxed-google-play
Then anything with apps listed here
https://grapheneos.org/faq
And I'll give ya a the easiest take away for this... You'll see lots of posts demonizing google everywhere in regards to spying etc. Does google suck? Yep, they spy on everything because they're an ad company in surveillance capitalism. They also participate in state sponsored surveillance.
For that latter category, are you a: civil rights activist? Attorney? Investigate journalist? Member of a persecuted class of citizen? Engaged in illegal activity? If you answer "no" to those, you don't need to be as concerned of google on your device as some internet posts will sensationalize.
Have a quick read through those links, it'll all make sense. Your school login is maybe associated with a burner google account if you're running sandboxed play services. If you used aurora store, then non issue.
If you're concerned for whatever reason, just make a new burner google play account to give you peace of mind. You didn't do anything horrible though.