This is false, most schools are using active directory SSO which happens to use Google for Education but could easily be migrated. In fact, many places have Mic

This is false, most schools are using active directory SSO which happens to use Google for Education but could easily be migrated. In fact, many places have Microsoft 365 and Google working at the same time under the same SSO. Yes they are using "Gmail accounts" but that's a far cry from @gmail.com accounts.