Yes I am using Krita with wacom on Linux. On linux wacom and most other tablets are just plug and play. They just work. krita is just a click away from the software center.
How did you configure Krita? I see almost nothing in the "tablet settings" section besides pressure. When Krita has focus and I draw on the tablet, it does nothing. Every other app treats the tablet like a mouse.
Every other app treating the tablet like a mouse is the normal and desired behaviour. As others said, Wacom tablets on linux should just be plug and play. I literally just plug it in, open krita and start drawing. Big difference from the literally hours I spent on macOS trying to find the right drivers for this older model.
I would add that I did have some issues with the Flatpak version of Krita where the tablet didn't draw as expected. Replacing it with the standard deb from apt repositories fixed that though.