This is going to be some picky feedback here.
When I have WFX menu animations on and 'Expand from Desktop' I noticed the menu 'jumps/rejigs' at the end of the animation.
It's mostly noticeable if watching the bottom of the menu as it appears, it will shift upwards and left in the last frame, almost as if the menu texture being 'expanded' is the wrong aspect ratio, so when the real one appears, it looks as if it jumps into position.
That transition might just need some tweaking, or maybe needs a specific one for the menus if the positioning metrics of menus are different to window metrics.