I have been using Kagi for a while now. Something I have noticed recently is that it ignores a lot more of the words in my search queries, I felt the same thing with google over time, it shows results it thinks I want not the things I want.
Whenever I try this with Google, I can't seem to get it to work though. According to [0], it is not an official search operator anymore.
0 - https://support.google.com/websearch/answer/2466433?hl=en
Just to make sure we're not accidentally giving Google a break, Google+ ended in 2019, if they cared for search at all they would have brought back this feature.