Hm, interesting. I have never used Unity (not exactly true, but anyway not used a lot).
In Godot I also use bones for that, but tail doesn't look so soft. Maybe they are not as advanced as Unity have.
@GlyphTheWolf Same with Unity. I once tried Godot, but I gave up, cuz I did not understand why even trying to do something from tutorial did not work for me. Do you make games in Godot?