A transparent webm probably would have worked for your use case. Or if you were willing to rebuild the animation, it looks simple enough for SVG.
I think the real correct solution would have been a Lottie animation, but there was no time to train the fx guys.
Its intentional sabotage by Apple at this point on behalf of MPEG-LA, it seems.
On another day Apple is working on behalf of MPEG-LA when its VVC patent pool doesn't even include Apple.