Honestly? This would likely end in a stalemate. Despite the SUC user is capable of using the applications, Garou is practically capable of doing the same thing.

Anything that the SUC user does, Garou can also do. They both are capable of doing practically the same thing. Garou is seen pretty much being capable of doing the same things:

Adoptive/Instructive Muscle Memory

Body Language

Analysis

Attack Prediction

Defense Prediction

Initial Movement Sense

Clear Mind

Indomitable Will

Instant Learning

And many more...

I chose Unarmed Combat Mastery/Supernatural user. But it will be a good fight ngl

Wasn't Garou a normal guy capable of beating superpowered individuals?

Yeah. He was very skilled and strong

Almost superhuman