I was wondering about the question above all last night and I have found out answer.Yes you could actually make YouTube shorts with Luma Fusion.
I was so playing all day YouTube Shorts. And yes I also edited normal videos. With Luma fusion you simply have to select the right aspect when you first start your project. There is no customed aspect ratio that you can select when you first start your project.But hopefully future updates of the apps will allow us to do just that.
So now I am pretty excited to making more YouTube shorts because I can play around with a real camera, that we paid thousands for than the conveniences of the smart phone.
One caution that we have to bear in mind is we have to shoot wider and not cropping in so much. Think vertical framing when we do shoot our footage. Most of the work is do in post production.
I was playing with Luma Fusion a few days ago regarding short vertical content. I though I could export out any aspect ratio, but I was so wrong about that. So it was a hiccup until I got my mind fresh to come back with an open mind and new perspective that thing starts to come into places.
Have you experiment with YouTube shorts yet? It less than 60 seconds of video. Instant feedback if your content is worth anything. Also you could quickly change it as well since it is only 60 seconds. Great way to test out concept videos right? And more importantly it does not take so much of your time.