Mastodon has very nice keyword based filter system.

For example, I have the filter “idiot did a thing”, and the keywords are a number of names of… popular people that news don’t get tired of talking, even though the thing isn’t actually newsworthy.

Same for other “ongoing” hot topics, that I already am informed about, where I don’t need the 24/7 doomscroll effect shoving negativity into my face.