As the title says, Godot is stretching/distorting pixel art. It seems to be dependent on where on the screen the pixel is located.
I've already double-checked my project settings and searched several queries, to no avail. It looks okay in the preview and editor, but this happens when running. It doesn't matter whether it's debug or release, regular resolution or full screen, it still happens. Based on other people's posts, I think it's due to resolution issues, but I'm not sure.
If it's relevant, my screen has a resolution of 2560 × 1600.