Finally, with the latest driver update, all the problems with the system and keyboard freezing and screen flickering have disappeared, and I hope that this is forever. I even reinstalled Windows completely to clean up the system in order to clean up the system from garbage and install the latest versions of all drivers.
So far, everything is fine, but yes - the first experience with ASUS ROG laptops disappointed me very much even before buying it... The first thing I came across was the stupidity and unskilled customer support, which cannot even give an answer to an elementary question regarding the size of a laptop. The second is, of course, the laptop problems described above - it's terrible that the support sent everyone to the same place for any questions - to useless technical support, which, according to other residents of this topic, did not bring any benefit.
Although this experience of interacting with this laptop model turned out to be not ideal, but the device impresses with the presence of a second display, which is very useful and necessary for me as a programmer, even despite the additional external monitors connected.
