I use XP-Pen Star 06 wireless painting tablet from 2017 or so at work. Both work nicely with GIMP on both Linux and Windows. Gimp is free and I don't need anything better.

GIMP is customizable; recently I have been re-mapping shortcut keys to fit my work flow with animations. I use the L key to turn layers on or off, K to go up one layer and select it, and J to go down one layer and select it. In this way my right hand is free on the tablet to draw or stamp pictoral elements on selected layers, and I avoid "onion skinning".

I am going to re-map all shortcuts, but the important ones are set like layer and brush opacity, merge down, stroke selection etc.