I’m pretty sure the camera functionality in cinemachine has been available in UE since 4.22ish and possibly before. There’s certainly courses out there that teach this in 4 and I’ve also used cinemachine and timeline heavily in Unity too. I’m assuming you are talking tracked cameras, tracking of targets, blending between cameras for cut shots, all these good things. In fact, there’s a course by Chris Murphy which covers the camera functionality on Udemy in the first section.
AI - no thank you.
Paper2D and PaperZD combined offers pretty much the same functionality as Unity
This was in beta in 4 and released in 5.1
Set Active | Unreal Engine 5.5 Documentation | Epic Developer Community (epicgames.com)
Never used DOTS Physics so can’t comment, rarely used FixedUpdate in Unity (only when implementing physics because what I needed wasn’t there) and complex collisions are supported - I know because you can build the collision meshes inside the editor if you want.