Thanks for the reply, @Erica.
Right now, the pop-up window appeared after I performed a simple CTRL+F search within an open document. This happens all the time for me. I will update this thread if I notice that it also happens in other circumstances. (The most recent Chrome for Windows here.)
As to the desktop app, I’m afraid it wouldn’t allow me to have multiple Dynalist windows open at once, right? I always have at least 4 Dynalist tabs open simultaneously in a Chrome window, plus there may be additional Chrome windows with Dynalist in them, too. Oh, and I do use the Chrome password manager heavily, so switching it off is not an option for me.
I realize this is not entirely in your hands, but if something could be done about it, I’d appreciate it.
PS: I used to be an Opera user back in the early 2000s. Of course, the current Opera browser has nothing in common with original Opera, and is just a Chrome clone. The true successor to Opera is the Vivaldi browser (from the same original Opera developers). So, I might try switching to Vivaldi one day, and perhaps that might “resolve” this Chrome issue (for me).