It's like java, but more annoying.
When you press e to open/close your inventory, there's a really quick animation that plays, but it's juuust enough time to be infuriating.
Picture this:
You're being snuck up on by a creeper. So you close your inventory and start running. On java it's fine, you're running. But on bedrock, if you don't wait that vital split second for the animation to stop, your keypress just won't register, so you won't start running.
Seriously, you could go on for days about how bedrock redstone is so bad, or how weird it looks in comparison with java. But no, that tiny window of time after closing your inventory where you still can't do anything is the frickin' WORST THING IN EXISTANCE! I'm not kidding, that was the thing that did it for me, the reason I played bedrock once and never touched it again.
Only thing I can say in bedrock's defense is that 1. it does run a lot better than java, so players with slugs for computers can still play minecraft and 2. the ability to create custom, animated mob models is pretty damn cool (seriously java, why tf do you not have that already?)
