I'm sitting here thinking about projects, wishing I could fire up a new VM and install Debian while I sit here on the couch. Then I would have a fresh VM ready to go after I recover from sitting on the couch.
Unfortunately the web GUI is not very mobile friendly. Or maybe it is and I just suck at it.
I realize I could have templates and stuff ready to go, but that would require foresight.
I don't think you can via the mobile app. It's more for management of existing stuff. I think it would be really complicated to replicate the UI for machine creation.
You can just use remote desktop into Windows. I used to have a headless PC setup with a GPU so that my wife could play Sims 4 over the network on her ancient laptop from the couch.