I just want to add a few notes here, very quick for now.

- We can easily incur Opportunity Attacks when using Disengage (an absurdity that has been mentioned many times elsewhere), and this post adds Misty Step to the list of supposedly safe ways to get out of melee that are implemented poorly at the moment.

- There's also the problem of auto-pathing around enemies, as noted by Niara.

- When am I in melee range ? I often don't know because what the game shows me, i.e. the position circles under the creatures, is not the same as what the game uses for determining OA, and more generally whether a given creature can pass between another two, along another one, jump and land there, etc. We are given bad information.

- Do I suffer an OA if I move away ? Usually I can tell, thanks to the red arrow. But it is a lot harder to see under large creatures (Worgs, Orgres). Possibly because the red arrow has constant length, regardless of the creature size.

- Finally, there's the issue that when our characters receive an OA, after auto-moving because they were given a command that used an Action or Bonus Action, they interrupt their movement and their task but the resource spent (Action or Bonus Action) is sometimes lost, sometimes not. It should be never.