My clients used that stuff in their tanning salon walls 20 years ago, I won a local AIA award for it, the metal hallway walls were a part of it. The owners (
did some of their own work and were excellent collaborators on the design) said they tried it directly over the studs but it didn't come out right, so they ended up installing it over drywall. This was the thin somewhat decorative stuff, but not the thinnest available.
Looked up other uses, looks like you can do a ceiling.
https://www.youtube.com/watch?v=aPPbs0OHK84
I'd have to check the code on what they did in that house video, last time I checked metal transfers heat too quickly (in case of fire) which is why the code encourages drywall over any other material when it comes to walls and ceilings. Even exposed CDX board inside of homes is highly discouraged in the code. And what I mean is you have to read between the lines sometimes, and it always comes down to your particular inspector. Just because you saw a picture or video on the Internet doesn't mean you can get away with it too.
I know what your are thinking, but this is a detached garage. Well, if you have insulation and an inspector involved be prepared to argue against meeting a higher standard, have a Plan-B and a prepared case statement with code citations.