How do I disable rectangles on the floor in video games?

I noticed some time ago that in some games I see white rectangles (just borders) all over the floor, which disappear as I approach them.

So far, I've got that in Minecraft, where those rectangles bordered the blocks on the ground, and in Battlefront 2, where there was a grid of such lines all over the floor (which I especially noticed on the Crait Map).

I never had that before, and I suspect I could turn it off with a certain setting in the NVIDIA Control Panel, and that might be a specific rendering method. For those who want to know: I have a GeForce GTX 1050 Ti.

Can be a driver setting, but also defective video card, bug in the game, overheating. Several causes possible. First install the latest driver.

Driver I have already checked (I look anyway for any updates) and the PC (or the graphics card) is not too hot. Since I only have the graphics card for half a year and they have never made problems otherwise, I think a defect is also unlikely, the lines do not really look like an aberration, because they move in three dimensions with the ground and in the transition disappear as I approach them.

Look if you can change the DirectX version or another setting of post processing or anti-aliasing helps.

OK…

Small problem: I had crashes on Battlefront 2 before, which seem to be due to too little memory (I want to get more RAM for Christmas, but until then I have to wait), and now that I switched to DirectX 12 I can't even start a small arcade round on Crait without the game crashing about 5-10 seconds after spawning because of too little RAM.

Then turn around again, so bring nothing.

I have, I try it now with the anti-aliasing.

Ok, I did not see anything in the graphics settings for anti-aliasing, but post-processing quality, so I changed it once, but it did not work. Maybe it's really on DirectX, in which case I have to try it again at Christmas