So while playing destiny 2 I get 98 to 99 percent usage at 140-180 FPS. This in itself isn't bad and if I set a frame rate cap of 60 even at 1440p highest settings I see GPU usage at 45-70% or so. (via task manager) Again no big deal. The problem comes in the form of my screen goes black for a few seconds and basically making it impossible to play. It seems to happen more in graphically intensive part in the game ( go figure), but it does happen in less intensive areas outside of fights. This never happens in a cut scene as those are much more prerendered ( I would assume) and don't see over 20% GPU usage. I have tried freesync on and off with no change. I have a brand new LG monitor 1440p 144hz and comes with some nice freesync software and is built around gaming. I have not done any special software to change the freesync range and I have not done any monitor overclocking. I haven't found my issue in particular anywhere yet. If any of you could help that would be great I seem to only have this issue in destiny and to a much lesser extent the division 2.
ASUS prime X470 Pro
R7 2700
32 GB 3200 Mhz C16
RX 580 8GB
Corsair 510 M.2 960GB boot drive
Corsair 510 M.2 960GB game drive
Corsair RM850x in white
Corsair 140mm fans galore
fractal define S
LG 32GK650F-B
Any advice will be greatly appreciated. I may try some screen recordings and see what comes out of that. It might show me that it's a monitor problem instead. But for now, I'm just very confused.