All my followers are from Pixelfed, thanks for your explanations. Still seems unclear how this works, especially if you see no notification/reshare/like/follow.

If it was shared/reposted, how would I know?

Just to add info. The two photos were not published after one another.

I see my very 1st published photo and the 5th. Others are not visible from gram.

What does it mean? Gram account is from today. Pixelfed is 2 weeks old. Both public accounts.