ViewSonic XG320Q: this issue on a $800+ monitor drives me crazy

My monitor (ViewSonic XG320Q) goes into crazy state when opening this webpage in the browser when ViewMode in monitor settings is set to "Text":

https://theunitedstates.io/images/congre...000944.jpg

Screen starts to blink and blue-grey vertical lines starting to appear from the top (see attachments).

There are many other scenarios when this issue reproduces on other web pages and also in games, but only when monitor is in the "Text" mode.

I could reproduce this issue in different OSes (Linux, Windows) with different GPUs (Intel, Nvidia) on two different monitors from XG320Q series (both manufactured in 2021).

Is there anyone with ViewSonic Elite series monitors here to check the above for me please?

Thanks.

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