If you see this, a video of that would be interesting to see. (I'm not entirely certain where would be a good spot to post it in a support context though...)

I have a similar setup, but experience no such issues. maybe it's specific to your hardware/drivers?

Maybe, but I have drivers for the monitors and everything else factory default windows install. It’s some ASUS predator gaming laptop that I inherited, but it’s reasonably powerful.

You may need a driver for the laptop's video card. The 'tearing' you describe is very characteristic of Microsoft's generic display drivers, perhaps for some reason the OS was unable to auto-install the driver?

Or the graphics card isn't being used for some reason? E.g., if your laptop has NVidia's Optimus[1], the graphics card may be inactive while Word's running. There's usually a way to force applications to use the GPU with Optimus.

[1] https://www.nvidia.com/en-us/geforce/technologies/optimus/

Definitely have actual Nvidia drivers installed.

Predator is an Acer line, not ASUS. Are you sure Word is using the nVidia gpu and not the Intel (on processor) gpu?