I tried whoosh wipes on my space gray 2017 MBP, they kind of smeared stuff around and then left this white itchy residue on my MBP. Maybe it would better with the Whoosh spray and a microfiber. I'd imagine just using water and a microfiber would be 90% as good as any solution, though. Also, I think whoosh wipes have some citrus based scent in them and that tends to bother my skin, so there's that...
I had an older space gray iPhone 6s that I cleaned with everything under the sun. I tried alcohol wipes, water and paper towel, 3% peroxide and paper towel, chlorox wipes, greenworks wipes, various "hospital grade" cleaning wipes, dish soap and water with paper towel, etc. The thing took it like a champ, but the space gray was slightly lighter after a year or so, probably from the peroxide. After a while, it kind of looked more like the "silver" finish instead of space gray.
After all of that experimentation my conclusion was the best way to clean it was a damp paper towel or tissue and maybe a tiny dot of some sort of soap if things didn't come off with plain water.