If it is true that their technician proved it, then you should report it. Perhaps you ask them for their technician’s report, to add it to your bug report.
I already was writing on the below and only added a few things because of your new reply, so I find your answer about Huion’s reaction interesting:
To be honest, since this behavior occurs in every app you use with your pen tablet on an Android device (at least if I understood you correctly), it makes me think to be a problem with your pen tablet or with Android. Krita, most likely, has nothing to do with it (okay, maybe the Krita developers know a solution to your problem, but so far you are the only one who has reported this). If it only occurs in Krita, then it may be the bug Huion points to without saying, but if it occurs with other apps too, I don’t believe they asked a technician on this, or didn’t you tell them about it happening in other apps too?
So there are two options you should check first: Huion and Google. With Huion, you’ll need to be lucky that the help desk employee handling your request has good technical knowledge, then you can expect good support. If you’re unlucky, you’ll get a smooth-talking help desk employee whose main goal will be to locate the problem outside of Huion’s responsibility, i.e., with you and your hardware that is not from Huion. Customer dismissed, problem solved—that will be their motto. I have experience with both types, and you need extreme patience and perseverance if you get the slick help desk employee. You have to keep asking them until they transfer you to the technical department or a supervisor notices that the help desk employee cannot solve your problem within a certain number of messages.
However, if you can rule out Huion, you should ask Google to fix their joke called Android, which they sell as an operating system to hardware manufacturers who are too lazy to install a working operating system on their hardware, or to fix the joke they get because it’s cheap for them to use it in the condition they get it…
But that could take years (so you can only hope that the Krita developers do you a favor).
I’m sorry, but I don’t envy your situation.
Neither path is likely to be fun, but these recipients should be the natural recipients of a request like yours.
Michelist