>>89173Do it today!
I mean the apng standard is just showing a series of images with a delay, just like gifs. So as long as you have the images you can just use ezgif or something similar to make an apng from them.
I even tested some and it turns out my paint.net could save the layers as an animated png, but that might've been a plugin i installed a long time ago and forgot about...
I've barely even touched on css animation so i don't know how much it can do, but if just showing a looping animation is what you need, i guess apng/gif could work instead.