So far, the @EU_Commission presence on the #fediverse has been hit/miss at best, and an absolute failure at worst.
They do not caption their images and most accounts are just mirrors of birdsite accounts. This means we don't receive most threads, just the posts announcing threads.
All in all, it's a slap in the face to those who value privacy and independence from US Big Tech, a half-hearted attempt that will thus be doomed to fail unless they make a true effort.