Poker hand combinations: does understanding these actually help

so lately i've been noticing that a lot of folks on here talk about memorizing poker hand combinations, like knowing exactly how many combos of pocket kings or ace-jack suited are possible. i get that it's probably useful for math-heavy players, but honestly, in real games i’m mostly trying to keep track of the players and the flow, not running card math constantly in my head. i set a timer for most hands just to snap me out of overthinking.

what i'm wondering is, do those of you who actually pay attention to specific hand combos in live or online games feel like it makes a big difference? i guess it could help with bluff catching or narrowing down ranges, but does it end up just overcomplicating things when you should be watching for tells or betting patterns instead? i don’t want to get so deep in the math that i miss the obvious stuff. anyone here feel like it really changed your results or approach?