new monitor issues?

Specifications: Monitor Model: Acer KG271U Xbmiipx Motherboard: Gigabyte Aorus Gaming 3 CPU: i7-8700k @3.70 GHz GPU: RX 7700 XT TL;DR, newly purchased monitor has strange stuck pixel issue or pixel defect I recently bought a new monitor as above, and within two weeks of having it, what...

Hi, Since installing a new monitor yesterday afternoon, I've had rampant crashes in games such as Rocket League and Rust, the crashes seem to start after about an hour of playing (just an estimate) and then happened very frequently afterwards. Rust just crashed after about an hour of playing...