With regards to Bluesky, I had kind of given up posting there, as engagement was pretty much zero for my several-months attempt in the spring.
But I decided to give it another go a few weeks ago, and I post there regularly again, hoping engagement (interactions - I'm not looking for likes and faves) picks up.
Whenever we do post new content on CoffeeGeek, I do post the links on Bluesky (as well as Threads).