I have gone through the setup a few times now, I've gotten the display to work as a display showing what my RPi 4 is doing. However, I cannot get it to respond to touch either from my finger or the stylus. I have tried running the Xinput calibrator, it opens but I can't go any farther because it doesn't recognize touch.
TLDR; Am I missing a drive or step to get the touch part of this Touchscreen to work?
I don't know if this will exactly work for your touchscreen model, but I did find these two resources online that may help with setup and commands:
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