This is a new problem that is impacting many creators, which starter around January this year. My channel shadiversity has suffered massively from it. Several creators have commented the same, as well as this video.
youtube.com/watch?v=rtyMiM…

Shad M. Brooks It's not just YouTube. It's also news. Several major algorithm changes since last Fall. It's decimating websites, too.

youtube.com/watch?v=fugssi…