How to fix tileset artifacts?

Have you tried making your tiles slightly larger?

If you’re using a Camera2D to scroll your level, you may notice lines appearing between your tiles. To fix this, open Project Settings and enable “Use Pixel Snap” in the “Rendering/Quality” section.

https://docs.godotengine.org/en/3.2/tutorials/2d/using_tilemaps.html

i also had this Problem too when i tried to build tilemap but after i changed to singlepictures that i converted to a tileset manually in the menu Scene->convert to->tileset there where no more of These interferences/glitches/White lines or however we call them...

I'm in the initial research phase about Godot, but these render artifacts can be removed by extending the tile pixels out further than the actual tile size. (16x16 tile, but 17x17 inside texture through extruding the edges.) Or leaving transparent pixels in between tiles. Does Gadot support options like these? Maybe through the use of supporting Texture Packer files?