The new 2500K was the 3600. Not the 5600X, not the 7500F, not the 12400F
everyone and their dog had a fucking 3600. this is the most reviewed chip on pcpartpicker by a mile, it was recommended everywhere, it was featured in every budget to midrange build. Even higher end gaming builds often used it because Intel had threadlets CPUs outside of the 9900K and the 3700X / 3900X hardly performed any better than the 3600 in games at the time
It didn't quite have the same overclocking potential as the 2500K but later 3600s could often OC well enough to push past early 3600Xs for what little that's worth, and memory overclocking could actually be useful on Zen 2 as the IF wasn't complete garbage