when people refer to it, they are usually always referring to total. personally, i think this is ridiculous, because i dont want a stat that tells
me how someone plays PF, OTF, OTT and OTR when im looking for info on a specific street.
its calced something like bets + raises / checks and calls, provided that you have an opportunity to do one or the other (ie you cant raise when calling AI)
so, with an agg of 1, someone is betting or raising 50% of the time, and checking an calling 50% of the time
but yeah if you use the AF in your decisionmaking, open the main pop up and use its turn and river values for decisions on those streets- this is the main thing i use a hud for. super beneficial.