I mean cloud providers are different. First, there's that level of indirection. You're a customer, not necessarily falling under the GDPR, but your customers might. So the mechanisms are in place to handle that worldwide, which you could choose to extend to everybody. Then there's the data from you being a customer directly, which is largely exempt from many GDPR things like opt-in anyway, since they actually need it to e.g. bill you, provide customer support, etc.

So far, I don't think any cloud providers show you ads based on your usage, but it's only a matter of time :) / :(