Hello,
had two matches with black flickering screen.
http://vreezy.de/cor/2021-02-13_193325_1814442278_2104288679.zip
http://vreezy.de/cor/2021-02-13_202217_1814442278_2104288679.zip
After i read this thread i have disabled G-Sync.
My Monitor: BenQ EL2870U 71,12 cm (28 Zoll) Gaming Monitor (4K, 1ms, FreeSync, HDR)
didnt find any options for Ultra Low Motion Blur (ULMB)
will test it later but still hope for help.