Well, after all your reports, and reading some of the other ones where people just turned of G-sync and it went away I decided to update the laptop drivers. Did a clean install of the driver, then disabled V-sync, but set a FPS-cap. It's a 240Hz monitor with laptop-powered GPU, so I don't really see the need for v-sync. It sounds like it might have to do with when FPS drops below a certain threshold on high-FPS monitors and that oscillation causes a stutter or jump in backlight. Some people noticed black frames or flashes, some just said flickering (which is how I would have described it). It was also worse with "bloom" turned on, but I tend to not like the looks of bloom anyway. So turning off V-sync and tweaking a few settings with a clean driver install, I tried Helldivers 2, Ark Survival Ascended, and 7 Days to Die and didn't see any flickering. I had noticed issues in all of them previously (as well as just the Windows log-in screen before). So far so good, but we'll see. Sometimes it takes a bit to show up.