P: Flickering problem in photoshop workspace

Hello, first of all sorry for my bad english.

I have a problem with flickering while using PS - i've searched all topics, and i saw that this problem exist from year 2019, and still no clue whats going on...

I have a new laptop - Acer Nitro 5 laptop with dual cards Intel UHD and Nvidia RTX 3050. All drivers are updated, and on RTX I have STUDIO Drivers, not Game Ready.

- I don't want to disable GPU on PS, because I'm using a lot of options for it.

- I can't disable g-sync (i saw this tip in other topics) because i don't have this option

- I have Nvidia Studio Drivers (on Game-Ready the problem is the same)

- I have this problem ONLY on Adobe app

Not my video, but it looks like this VID 20190809 233324 - YouTube - when you use mouse, tablet for drawing with brush, when you do anything on workspace all image changing brightness/contrast when you click/use brush. This is really really REALLY annoying.

I saw posts with telling others that dual-card laptops may have problems. But it is not a solution - the market with these laptops is huge, so ther must be a solution...

Is there really nothing you can do about it?!

PLEASE... help. I do not want this topic to be like the others - years later - without solving the problem. For me for OTHER people who struggle with it.

Best regards S.