It's so annoying, really.

I use the latest WordPress and every single time I try to edit a post or a page, this thing appears right in front of my face.

I go to Hide more tools & options, then Options, uncheck Enable Tips, do my job, save and close the dashboard.

After a while, I return back to edit new content and the tooltip is back.

I'm seriously considering installing Classic Editor until this whole thing gets fixed and become much more stable than already is.