Ok, apologies for the last toot, I've removed it :blobsad:
For transparency, I was posting that Pixelfed federates fully now, but apparently a lot of instances don't have the necessary code yet.
That should come in the next official update (10.1), but I've deleted the toot because it isn't out yet and I don't want to cause any confusion.
I'll repost about Pixelfed federating once 10.1 is out.