Technically he must still comply especially with data subject rights / request for deletion.
Now I wonder how that would work in practice, considering the underlying technology which is akin to what I manage (telco / isp) and where a lot of principles are still vague to implement.
Like when we get request to delete personal data sometimes some has been transmitted by nature of the service and a lot of actors have legitimate interest in processing / keeping the data for a while.
But generally it’s not about the content of a transmission but more the attached metadata used for billing and such.
Anyway it’s very interesting to watch, preferably from a distance.