Hi, push out is pretty great, and while you mentioned it not working with horses, there are some other places where it doesn't work, or other things. I thought I'd mention them.
Push out not functioning:
On boats, while riding a horse, also underground/in caves(walls only, it does function on objects like stockpiles and mine supports).
Additionally, getting out of a chair feels a little sticky since the update? This may just be the positioning of my particular chair and the interaction with the new code. But try sitting in a chair that is more enclosed by other objects and clicking not directly toward the exit path, and you should see it happen too.