Have u noticed any abnormal touching anywhere else or only when playing pubg? Try download from play store touch tester application, and chen if the touching responding well on all the screen panel
Go to Asus calculator and key in .12345+= Click Single test and test the touch input. If you touch the screen in a straight line and it reach in zigzag pattern or random touch appear, send to the service centre.
did a test and showed that everything works properly, and there are no zigzags I no longer know what to do, I tried on my last smartphone one plus 7t, everything responds smoothly