The physics drop one will make it automatically tile.
The hand placed mesh one where you use the array to place them will also make it tile, but only down and to the right, so try to place things on the upper left border. of course without documentation it might be tricky to get without trying once or twice.
With TempAA off you’d see a dither pattern. but it would only show up on the intersection of meshes. But its pretty easy to bypass using a quality switch if you don’t want to use it.
Actually for high quality screenshots we just use highresshot which samples at a higher solution. TempAA doesn’t work for those.