Just realized animatedTexture is to be removed. https://docs.godotengine.org/en/latest/classes/class_animatedtexture.html
Warning: AnimatedTexture is deprecated, and might be removed in a future release. Its current implementation is not efficient for the modern renderers
I've been using it to animate textures on 3D mesh. Is there anything else to replace it?
I think you can continue to use it for now, but unless they implement a new alternative you might have to implement a custom shader based solution as the alternative. Definitely should be solvable via a custom shader material though.
Yea that's what I'm afraid of. The dark magic of shader seems overkill. I hope they are working on animated decal node.
Btw Happy Birthday to Godot 4 ! 
Gowydot The dark magic of shader seems overkill.
The humor is that The Book of Shaders stops there and there is only a chapter on the subject in the draft.
