[user34283]

My search told me that unless you are a gatekeeper, offering a reasonably priced ad-free tier allows to make the ad-monetized version personalized only.

I think it makes sense. Either pay, or consent to effective ads. There's no free lunch

[moi2388]

You are allowed to serve ads, but not use data to serve personalised ads without free choice opt-in.

In theory of course, in practice nothing is being governed or fined for smaller companies.