dbl-clk fails on desktop but not in file manager

MS closed my case without fixing it or even checking if the reinstall worked (it didn't)

dbl-clk fails on desktop but not in file manager

dbl-clk fails in notepad editing text

dbl-clk fails in Outlook opening mail

dbl-clk fails in OneNote

dbl-clk works fine in file manager

dbl-clk works fine in calculator

dbl-clk works fine in WhatsApp

if you switch primary mouse button from left to right, it works just fine when dbl-clking right mouse button

failure repros with built-in trackpad, wired trackball, wired mouse, wireless trackball

brand new Lenovo Legion Pro 5 laptop

running Win11 Pro