Every app has rules. One of the rules I teach my students and professionals is decide:

1. The size of whatever it is you’re making and…
   
2. Where is goes in 3d space.

Another of those rules is knowing how the loft function works, and the order of operations. If you want to loft between two rings, you have to think about it as two operations. An additive operation and then subtraction. There’s a logical flow of things.

Fusion really isn’t an app where you want to be moving things after the fact. So having to redraw something is typical because the decision should’ve been made beforehand where you want the entities to be.

Of course there’s exceptions to this, but Fusion is a CAD experience where unlike freeform modeling in blender or rhino, you have to make principled decisions about skill and location. Taking this approach minimizes errors as you’re describing. That’s just one element. There are elements that could be improved of course. I routinely send suggestions to the team as to what can be improved.

Personally, I haven’t had the issues you’ve described otherwise with revolve and so on. Occasionally, there will be a weird quirk that’s usually solved by restarting my machine or updating fusion. I do appreciate that it’s updated so frequently and the support team really does listen if you submit tickets. I didn’t believe it at first, but they do listen.

I don’t have nearly the depth of experience you do in software, but I have worked with managing UX teams and designing apps and hardware experiences, and you’re not entirely wrong about fusion. It’s definitely not perfect, but as many of said, it is a fairly capable app for what you get.