I haven't recorded any metal for a few years, but I'll give it a try!
Metal may not need much room noise - you mention clarity, so try backing off the room and see if that helps.
Get a microphone with a good top end response - don't be afraid to shy from the 57 on guitar if you have something else to use. Of course, make the amp sound good in the room.
Locate the speakers on the amp if you can't see them behind a cloth. Move the mic to the left and right in front of the amplifier speaker until you hear the treble response you are looking for - don't just plop it there. Helps to have a fancy studio to do this with an isolated control room, but you can move the mic and then say it's position while you keep the recorder rolling.
Some people also mic the back of the cab for extra bass - perhaps try that with your 2020 with the 57 on the grille. Flip the phase on one of the mics and see how it sounds - it will sound better or worse or you won't be able to tell. If it sounds better, leave the phase flipped, otherwise don't.
You can also place both mics in the front and blend to taste.
Also, I'm not sure if they are still in use, but lots of metal guitarists I knew used those multi effect computer boxes, not normal pedals. I always thought they sounded pretty bad, aside from the POD - which I bought as a recording enthusiast.