Penetrating exterior wall to bring in a continuous MC cable to the garage
Don’t cut the cladding.
Cut an elongated hole long enough to enter and continue on the other side of the wall. Start your cut right after a stud punch the inside hole so the cable will make a lazy Z. Pull the cable through the 2 holes and seal the outside one with a paintable silicone calking.
If you want a 90 yes cut the cladding but the problem then is having enough space to splice the #2 wire this will probably take a box and fittings, this can get expensive box on the outside, nipple box inside, or a large box through the wall.
I have done both and any time I can eliminate a splice I will opt for that especially on high amperage feeders.
The sealing is not that difficult  and whatever method is used will require some sealing.
I would use a 1–1/8 or 1-1/4” hole saw drill the first hole then as close as (overlapping about 1/2) possible drill the second hole so the length is about ~2” the same thing inside at the other side of the stud bay works best (less possibility of breaking Sheetrock
A clamp can be put on each side just prior to entering the wall. No extra connectors, boxes or wire nuts needed.
14” is plenty of space to make the lazy Z from one side to the other.