Anyone knows if their implementation supports animations? This is a feature missing from Apple's

According to the chrome platform status page, yes! https://chromestatus.com/feature/5114042131808256

>>>

  - Progressive decoding for improved perceived loading performance
  - Support for wide color gamut, HDR, and high bit depth
  - Animation support

Yes, but it's not recommended - it does not have inter-frame compression, so it is significantly less efficient than just having a regular video file and slapping 'gif' on it.

It does, I just tried it in Canary and the jxl test page did also show animations

What, isn't this the cue for someone to explain that it's ironic webp is really a video format which is a bad image format, and now we have symmetry that JpegXL is a good image format which is bad video format? :-D

(I don't know if any of this is true, but it sounds funny...)