Why are you posting this here though? It doesn't seem to be a widespread problem, and how do you know it's not the universities themselves changing the configs automatically with some other software? I'm sure you can reply to Google support again, and work with the universities to debug this, using their Google support as well. It might not be Google at all. Just saying that a single support reply indicating that a r…
Because this is the only place to actually get any support from Google, instead of just canned responses from a chat bot
And every educational institution that uses Google Workspace for Education gets high-quality enterprise-level support, which is the channel OP should be going through.
This isn't something involving free consumer accounts.