What social media sites do you use where you've been successful at avoiding the algorithm? I don't see how it can be avoided. It is always trained in some way based on your estimated demography and what content you engage with slightly more than others.

Facebook, IG, Twitter, Bsky.

To be clear, I'm talking purely about being forced to see content from accounts you don't follow and not things like them choosing to show you content from one account more than another. Not all of them support my preference of pure chronological, so they will monkey with what I see amongst the things I follow. But all of them make it easy to quickly filter out and/or avoid any unwanted activity outside of sponsored ads.