FWIW, I've been consistently posting quality stuff on Bluesky for the last year, and despite having a few hundred followers, I get ZERO engagement.
People in the Bluesky subreddit tell me it's not a "post and ghost" platform in that you have to constantly interact with people if you want to earn engagement, but that's too time consuming.
In other words, the discovery algorithm(s) on BlueSky sucks.