Win 11 duplicates PDF icons moved to a different monitor

I posted this question before, but I can't find it when I search so posting it again.

Like many, I set Win 11's start bar to not combine/group/stack icons. One file open should equal one icon, despite what the teenagers who apparently are in charge of Microsoft's design want. However, after I did that Windows 11 decided to clone icons for PDF (and only for PDFs) that are dragged to another screen. Drag one to a 2nd monitor, and Win 11 shows  two identical PDF icons, drag them to a 3rd montitor, and Win 11 shows 3 identical icons.  But only one of the icons does anything - the clones just sit there taking space and getting in the way. 

I spent an hour yesterday again with my company's IT  support trying to stop this (every 3 months I check to see if Microsoft or Adobe has stopped blaming the other company and done something to fix the problem). No luck. So today I thought I'd check this forum to see the latest, but I can't find any mention of this long standing problem. Is Adobe even working on trying to fix this?  I understand that Widows 11 sucks (no one with half a brain would dispute that), but this dumb icon cloning problem is really frustrating. It would be nice if Adobe would work with Microsoft to get it fixed.