Sports betting closing line value: does anyone actually calculate this

I see people talking about closing line value all the time like it's the gold standard but honestly, is anyone here actually tracking it for every bet? I get the idea in theory and I like stats as much as the next guy, but I find it hard enough to keep track of slots spins and bonuses, let alone record every line I get on a game then compare it with the market close.

I figure some folks probably just check it on the bigger bets or when they're testing a new approach. Is it really worth the effort for the average bettor or just one of those things the pros obsess over? Curious what others are actually doing.