I've been having random black screen. Happens, once in a few days and looks like lost signal (screen turns off for a few seconds and then turns back on) but when it happens some apps like photoshop and blender always crash. Everything else works fine and also sound (music, video, etc) doesn't stop during black screens.
It started sometime after I bought a new screen AW3821DW. There's also tv connected to the same pc and when the black screen happens, they both go dark.

I tried updating Windows 10 (current build 19042.746) and gpu drivers (461.40)

144Hz in Windows. but the issue persists in 120Hz too
G-Sync is on for fullscreen

PC specs =
Asus tuf x299 mark 1
i7-7800x
G-Skill 32 GB 16+16
Palit RTX 3090 GamingPro OC (three DP/one HDMI)
970 EVO Plus 1tb + 2tb
Seasonic prime platinum 1000
Windows 10

PC RTX 3090 DP out port --> AW3821DW DP in port

PC RTX 3090 DP out port --> tv DP to HDMI cable --> tv HDMI in port