I'm experiencing some jumping problems too. But, I was always experiencing the jump and delete problem. Luckily the undo brings it back.I think that gif is Facebooks reacts. They have had them for a while now and now we have something very similar.
I personally like it because it is much more expressive!!
But can understand why some don’t.
That said, I think if you just click like fast and don’t hover over it, the other options do not pop up.
Personally I think the new site/format feels very clunky on mobile.
Also sometimes when I’m typing or try to hit enter and go down, it jumps and deletes stuff I had typed????