Is this really a blunder ??

Is Qxg2+ really a blunder ? The max analysis says so and I cant see how it is , without another blunder its a RR v RB endgame either way

https://www.chess.com/live/game/2268905966 --- Sorry , I'm new I thought I could upload the analysis png. I just think I should get better analysis than that at max 

Yes, 21. ... Qxg2+ is a blunder. Playing 21. ... Nxf3+ instead wins a pawn and a rook for a knight, rather than simply trading queens. Play would continue with 22. Rxf3 Qxd6 as 22. Kh1 Qh4+ results in a quick checkmate.

ok , I didnt notice the pawn gain . Thanks , No regrets though I'd still do it my way again lol , I like the chance to offer opportunities for more mistakes , thats worth a pawn to me in that situation  

From a material perspective, 21. ... Nxf3+ actually results in a gain of three pawn equivalents.  While you lose your knight (point value of 3), your opponent loses a pawn (1 point) and rook (5 points).

23.Rd3

 Blunder or not, people just love to trade queens when you don't have to.

Nice one , Glad my opponent didnt see it

I love to trade queens. I tend to play tactically and so when I trade queens it often means that I've spotted a slight but persisting, positional advantage in doing so. My opponent relaxes because he thinks a tactical player who trades queens is after a draw. This psychological trick works well in practice.

i don't usually trade queens but when i do, i notice how much easier it is to win.