Earlier quoted context omitted.
> Removing everyone else doesn’t take as much work as I expected, as long as you’re not hesitant to unfollow (or even block) those who distract from your desired timeline. It's also not even necessarily them . Twitter is enthusiastic in assuming that, because you're engaging with one person, you must also be interested in what they're engaging with. My efforts to have reasoned debate with one person in my life who wa…
Yeah, I think the rise of "follow-of-a-follow" "engagement" content and promoted tweets were where I heavily started to lose any impression at all that I could control/curate my Twitter timeline, and started to lose a lot of interest in Twitter altogether. (Algorithmic reshuffling of the "timeline" into something that wasn't purely time-based didn't help either, but seemed a modest symptom to the other two problems.)
Create lists and unfollow everyone. This way you only get the content you want.