[goobatrooba]

There is no obligation to put a banner of you don't sell your users' data to third parties. The law is very clear that your don't need it for period technical cookies, so it's really always and every time solely about tracking and advertisement money.

[microgpt]

You do need it for analytics though, or any other non-essential purpose.

You could probably argue self-hosted, privacy-preserving analytics is a "legitimate business purpose" so doesn't need consent. AFAIK it's because you're sending user data to Google that you normally need consent for GA.