No.

Net neutrality refers to prioritizing/throttling traffic between the provider and the client based on anything other than infrastructure limitations and QoS markings, to avoid a situation where client network providers could conspire with service providers to extort extra payments from clients.

It says nothing about the provider deciding to throttle, or even completely block/ban, certain clients. That would be separate legislation, like the proposals to prevent "de-platforming" by major social networks (see how Threads avoided giving access to people in the EU until they enabled some integration with the Fediverse, to avoid getting accused of abuse of power).