How do I "ungroup" (or whatever it's called) PDFs on Win11 taskbar?

Win 11 is such a pain. Hard to believe it's been out for several years. My latest quest it to figure out how to make my PDF icons ungrouped on the Win11 taskbar. I've got them so they show separatel on the taskbar, which helps. But all the PDFs are stuck grouped together. I cannot put a file of somethig link Excel between two PDFs.  I can drag one of the PDFs to another screen, but when I do that, Win 11 shows get two identical PDF icons on the second screens taskbar, which I can only get rid of by dragging the PDF back to the first screen (where it is immediately "grouped" with all the other PDF's).

Is it possible to have Win 11's taskbar show a PDF, then a Excel file, then another PDF and so on? Or am I stuck with all the similar files displayed as a block? 

I'm going to post this on the Micorsoft hub too, though I imagine their response will be to hack my registry (seems to be their answer for everything).