He is an average defender, did a stupid joggle with the ball that almost lead to mbappe getting a goal. His clumsiness almost gifted them a goal, luckily Neymar made a mess of that situation. Anyone who thinks Stones is one of the best CBs has to be absolutely clueless in regards to what a world class defender is.
Also the heart symbol hurts your eyes "every time", really, every time? If you have a problem with the heart symbol then you have bigger problems than worrying about my opinion of John Stones. You should really consider seeing an ophthamologist or better yet a psychologist, you might have a psychological problem.