Shaking to disconnect a node doesn't seem to work anymore, is this broken in 21.0.440 ?

Or is there some preference that needs to be set ?

edit : only when using the Wacom, with the mouse it still works, is this known and is there a fix ?

I have my 'Shake distance' set low (0.25) in Prefs (Network Editor, Nodes...). I'm normally using mouse - as you say it works as expected. I did get it to work with my Wacom - but I had to shake very violently - much harder than with the mouse, so maybe a bug as you suspect. Decimal point in the wrong place? : )

Gracias, I looked over that preference.

I had to set it to the minimum of 0.1 to even disconnect a node, but still this worked way better in 20.5.