Hello and thank you.
As far as I can tell this isn't triggered by pressure, only time and movement. It will still pop up even when using my finger. I have noticed that when using brush tools the colour picker only pops up if I'm not moving, which works perfectly for me. The magnifier with the node tool and a few others, however, pops up even if I am moving.
I have enabled canvas rotation in all tools so that it's easier to move the line out of the way if the magnifier pops up over it. This is still somewhat annoying, but definitely usable.