No its not intentional I'm pretty sure. It also happens outside too. Below is a link where i ride the ATV all the while the light flickers, however as said b4 OBS doesn't capture it at the end is camera footage of it happening to prove I'm not crazy
No idea what it could be then, haven't seen this before.
LOL I just figured it out. If anyone has a similar issue make sure HDR is enabled in your display settings and in game. This fixed the issue for me.
