kdenlive to me is like gimp. I launch it everytime I want to do something quickly, without really thinking about what tool to use.
With Davinci Resolve I have to intentionally plan on making a video to be willing to use it, because it's much heavier, doesn't support the audio in most of the source videos I am using, so I have to convert that first, and does a lot more than what I usually need.
That is the onboard recording feature of the Meta Quest, it does have a way to change the video codec but the audio codec is fixed.
I'd also argue that most off the shelf stuff that records videos in any form uses AAC as a default simply because it's ubiquitous and thus has great cross compatibility.
It's mostly for youtube shorts that don't get a ton of views in the first place, so I am going for a quick and easy fix that keeps the file size mostly the same.
But you are of course right, if I would go for a professional setup I would not recompress it
With Davinci Resolve I have to intentionally plan on making a video to be willing to use it, because it's much heavier, doesn't support the audio in most of the source videos I am using, so I have to convert that first, and does a lot more than what I usually need.