I just don’t get why don’t people use the “following” tab. You only see people you follow, if they post things you don’t like unfollow them that’s all.
I feel like you don't use Twitter that much then. Because they added the whole notifications about new posts feature a while back and it's not based on who you follow and I believe famously it's like that so Musk gets more views. And I feel like my tabs get changed on a somewhat frequent basis but I've stopped using it to really keep track.
This is simply not true. Before Musk took over Twitter they constantly switched to the "For You" tab. Only after Musk bought it it was changed so the setting sticks. You can also change your notification settings to the old way (only people you follow, etc.).
I think you need to readvise what "simply not true" means. I gave my experience and for you someone who doesn't even know me cannot say what is or is not true about my experiences.