I am better at Blitz than Daily, but much, much, better at real world chess than either.
Blitz is anti-chess.

You've posted this multiple times so I'm not sure if you're being serious.
But looking at your ratings here I would guess that if you really did beat a 2000 FIDE player that they were destroying you all game then blundered a mate in 1 or something, so now you say you beat a 2000 rated player.
But anyway, yes, blitz is just for fun (and bullet is a little ridiculous, it's barely chess at all).
A provocation: if you like thinking and reflecting, you must hate blitz and bullet. If you define chess a game for thinking and reflecting, you must say: blitz and bullet are the opposite of chess. Even a danger. My personal experience is that blitz destroys my chess. It makes me blind for the deep structure and for the beauty of chess. Maybe (or sure) I am too weak for blitz, but I can say that in a blitz game I calculate two or three moves, more - for me - it's impossible. So my blitz games are blunder collections. Absolutely not interesting, yes, it's a shame. Last week I won (OTB) a long game against a player with over 2000 fide Elo; then I made a Blitz on chess.com and lost the game against a 1300. It's frustrating. So I try to avoid blitz. It makes me hate the game.