I managed to fix it by rolling back to the microsoft device drivers. But the performance is TRASH. I have a Dell Latitiude 5290, but maybe it works for others.
Go to device manager > Display Adaptors > Intel 620
Then right click on Intel 620 > select update driver > Browse from my computer >Let me pick from a list of available drivers on my computer.
Then you should see "Microsoft Basic Display Driver" at the bottom. Select that and install.
I don't get the flickering anymore, but I'm hoping intel fix their drivers soon!!!