I’m new to blender, so please forgive me if I say something dumb.
I’ve been trying to make a map in blender. I imported an SVG file and followed a YouTube guide, already applied Decimate modifier to clean up the messy edges, converted the curve to mesh, and my map still ended up with these edges across the map.
Those edges cannot be removed, because a face cannot have a hole in its middle. You need to use multiple faces here. The best you can do is to put them in areas where they look nice, if that’s important to you. In other words, you can remove those edges only if you add additional ones somewhere else so the hole doesn’t end up floating in the middle of a single face.