I am seeing friends in game for more than 100mins while they are not even playing the game!

Its starting to get a little retarded,since the updated client this happens to me,i see friends playing a game of LOL for more than 100 minutes while they are logged off of the game,honestly Discord's doing LOL's job better,if i want to see if any of my friends are actually online playing a game i check my discord...what is this shit?