This tracks with my personal experience. On twitter I had about 20k followers and was getting 20-30 new followers per day and tens to hundreds of likes per post. This dropped to pretty much zero once Musk started fucking with the algo and pushing blue checks.

I’ve been on Bluesky for about 18 months without much engagement, but in the last few weeks it’s exploded almost to the levels where Twitter was before it got enmuskified.