People play sims because they like the complexity, if you are willing to go trough with the learning then you can do it.
If learning how it works and how to operate it seems fun to you, then give it a go.
If you just want to go fast and clear the map of all signs of an enemy contact then probably start with something more arcade-y.
VR its just the image output, the game or sim you are using its what gives it the complexity.

The main thing that takes time to learn in sims is the specifics of the vehicle you're trying to fly, I think it took me a few weeks to really get the planes I have in dcs and I got vr a few months after that, most work after that is rebinding everything that's changed and getting used to it. In dcs no two planes have the exact same set of buttons for everything anyway so there's new bindings no matter what you do. I'm sure if you jumped in with vr from the start it would only add a bit of extra fiddling around.

I knew nothing about planes before I started, now i know a lot of the fundamentals. Still couldn't fly irl but if I was in a small plane and the pilot passed out, I'd be more confident in landing after playing the sim because i at least know the fundamentals

it does take some research and googling on your own, the sim usually wont teach you much