I have already searched for a solution and tried everything. I have installed CET but it's not helping this issue. I've run it in Windowed, Windowed Borderless, and full screen.

With that out of the way does anyone have any ideas? I have 2 monitors, and when I mouse right the cursor leaves the primary screen. This is game breaking as it happens during combat the most and will send my game to the back. I'm so frustrated as this was not an issue when I started playing the game 1 week ago. I woke up yesterday morning and it's so f'ing broke it's unplayable.

Is there a new mod that fixes this? 24 hours in and I can't play it anymore.

Have you updated CET to the latest version, or at least the version associated with your game patch?
I have CET, playing Borderless on game patch 2.1 (or 1.6, I have installs of both), and I can't remember the cursor leaving the screen has ever been an issue.

Only time it was an issue, was when I had another game - also in Borderless, on another monitor - running at the same time as I was playing Cyberpunk 2077.