Weylus VS GfxTablet

I've used Weylus [0]. It works over LAN, lets you control the mouse from your tablet. Sometimes it's laggy, but you can configure the resolution so it's not using too much bandwidth. I'm not sure if it's stable at all. Haven't used it on a regular basis.

[0] https://github.com/H-M-H/Weylus

Can't speak for modelling on Blender itself but, I have https://github.com/H-M-H/Weylus setup up on my linux desktop to draw the 2D animation frames for my game using OpenToonz and an old Android 10 tablet with stylus for input.

You can also use a software called weylus, to use the tablet as "writing pad" during online discussions/lectures, it works quite well although still prefer my wacom one tablet for that.

Any of the scrcpy GUIs like QtScrcpy let you mirror your Android device onto the PC and also control it from there if you enable the option, otherwise you can do the opposite with Weylus, so you mirror your PC's screen to the tablet and then you can draw from it with either your fingers or a pen, with pen pressure supported as well, which I find pretty amazing!

Weylus can turn your BOOX device into a wireless graphic (wacom) tablet with a live video feed while supporting all the pressure sensitivity levels of the stylus. I’ve used it for drawing inside Krita (example shown below) and also sculpting inside Blender (Krita and Blender running on my laptop). I think it is very simple to set up - I just start Weylus on my laptop and then connect my Tab Ultra via a web browser. The input latency on the laptop screen is low, but the live video feed from a laptop on the tablet is quite a bit worse because of the screen technology, but it is still usable in one of the fast modes (and the laptop screen is right next to me, so lower quality of video feed is not a big deal). It is possible to disable this live feed and just use it with a black background like most graphic tablets - but I quite like to see the same canvas also on my tablet.

Are you looking for something like weylus?

For Android, there is GfxTablet, which basically turns your tablet or phone into an approximation of a graphics tablet and works together with an input driver on for a Linux system running GIMP to appear as a tablet there.

Check out https://github.com/H-M-H/Weylus . I have not tried it myself, because the tool did not exist when I last researched this use case ( only GfxTablet existed back then and was already abandoned )