When putting 2 photographs on a wall, they overlap the render, making this a very noticeable problem.

Does it happen with no shaders or different shaders?

Yep

Judging by the grass, I'm guessing you're using Optifine?

yep o:

Optifine is not supported. It's closed source and known for causing issues with other mods.
You can use Sodium/Embeddium and Iris/Oculus for shaders instead.