If you don’t like how the algorithm works you can write your own (that’s what feeds are - custom algorithms).
I don't like the format used by X, BS, Mastodon and all the others so I do not use any of them but I do passively partake of what is posted on them. In practice this comes down to probably 95% X, 5% Mastodon/Pleroma and that's it. I have yet to find a BS post of interest and won't use Threads because I don't do Metafacebookthings.
However, it’s not just that. If you want to see more tailored content you have to follow people. Expecting to see anything other than the most currently-popular posts when you’re not following anyone and haven’t set any preferences is frankly ridiculous.
One thing I will say though is that although BSky has good science and arts communities the tech community seems to be sticking with Mastodon.
not unlike reddit where the first thing you should do is unsubscribe from every single default subreddit (if you visit the home page at all, anyway) - this has been true for as long as I've been there (a decade, and I haven't really visited for the past couple years)
I also basically only follow indie hackers and some “thought leader” types like Naval Ravikant.
Every time I launch the X app on mobile, it automatically switches me to the algorithmic “For You” feed, so it’s hard to miss. This is apparently not configurable in the app.
When I’m on desktop, the Control Panel for Twitter does a good job of getting rid of most of that.
I tolerate X, I wouldn’t say I like it but I like reading and connecting with certain people and their only platform is X.
I think that’s what keeps X going: network effect.
Maybe my user account isn't in that feature pool yet?