I will let you know when/if I install Duet Display.
Meanwhile there are 2 alternative options for you to make animation with freewares: Blender and OpenToonz.
They both are supported by astropad.
Blender is mostly known as a 3D software but developped quite a powerful 2D animation module called “grease pencil”, you can see examples on youtube etc…
Opentoonz is an open source version of Toonz, a program used by studio ghibli (anime)! it is way more powerful than Krita, but yeah, learning curve is not the same…