You should always clean your AK after every shooting session. The only people who don't clean their AK are third worlders who live in shithole countries and lazy Americans. Every country who Issues or Issued the AK has a strict cleaning regimen detailed in their manuals. If you watch youtube videos of the war in Ukraine you will even see the men of Donbass cleaning their AKs at the end of the days fighting.
If it takes you longer than 10 minutes you're either doing it wrong or sippin' a beer and taking your time. A simple field strip, run a boresnake or otis through the barrel, wipe the other parts with a rag or paper towel, lube and reassemble. There's no need to scrape carbon with a metal tool and no magic involved. If you shoot corrosive primed ammo water is all you need. Flush the rifle with water, clean and lube.