To be fair most of those have absolutely no ActivityPub support, only talking about the desire to support it at some point in the future. Others are early alpha and cant really be run reliably.
Pixelfed, has no activitypub features
anfora has no userinterface of anykind and is unusuable and not even alpha yet.
Plume is early beta and so buggy it is barely usable.
Prismo has no activitypub features
While i agree there is a lot of hope for the future and many of these projects are on the horizon and i look forward to them the truth is there really isnt much available
right now in any useful form. But it is clear we are getting there.