external monitor flickering

Yes - this issue has been discussed alot. I have tried all the suggested solutions - changing colorprofile, changing refresh rate, changing cable. The problem occurs both for thunderbolt-thunderbolt and thunderbolt-displayport. The only "work around" is using hdmi, which is a major downgrade considering the cost of these mac computers.

I have this flickering problem both on a Studio Ultra m1, and on a macbook pro m1.

I am using a Benq PD3220 external screen, but I read that the issue is also related to many other brands. I am using my macs for work, and this flickering is a real problem now. Can anyone recommend a screen where this flickering is NOT happening (more than 1 year flicker-free) ? Did anyone with a mac monitor experince this problem ?

Can it be fixed by sending the computer to repair at apple - did anyone get it fixed by repair ?