Yes! Not creator here, but you can pretty easily use these in Godot. Just grab the files, put them in your project folder (you probably want to change the Import settings to 2D Pixel preset so that they don't import all blurry) and then create a TileSet node in your project and start blocking out and adding collisions etc to what you want to.
I haven't tried it out yet, but I have heard there are many improvements to the tile editor in Godot 4 also! I plan to try it out next month.