All this discussion about the Sys Tray. There is a possibility the inability to move its icons about since 572 is by design & not 'bugs'. Moving its icons about may have been discontinued, intentionally.
Personally, I am really not bothered by this. I have the overflow arrow shut off & have selected which items I choose to have on the Sys Tray. Plus, I only show or view the Sys Tray 'On Demand', anyway.
Though, certainly, I do respect those who feel it necessary to be able to change their Sys Tray icons positions.
Yeah, a very bad design, plus a bug that screws up Win + Shift + S when Win + X is open.
That is a BUG.
The whole thing is a fiasco. 🤐