ADA compliance for an animated chat widget icon

I have developed an animated Chat widget icon that allows users to close the widget icon (so it’s not obtrusive on every page) and animates the chat icon to the navigation, so users can see it move from bottom right corner to nav bar. That way they know it’s clearly still available (but out of the way).

My question is about ADA compliance for an animation like that since it happens outside of an initial screen read of the nav and would need to trigger some messaging to the screen reader as to where to find the Chat widget if necessary.

Does anyone have any experience with this type of animation and ADA compliance?