silicon lottery, im running 7200-32-41-41-41 fully stable. thats on the high end of what the 13700k can do to my knowledge tho

no. even 240mm aios and some 280mm aios trade blows or are at least very close to good air coolers, AIOs start to become worth it at 360/420mm and at 280 it mostly comes down to preference but a good aio is gonna beat the best air cooler so its the better pick if its not a blind buy