How can this chaotic game has no inaccuracy, mistake or blunder?

I was analyzing my previous games and noticed, in this one i've 99% accuracy!! what? I did questionable trades, extended my kingside pawns, my king was exposed (one move away from being checked) etcetera.. And how can this have ninetynine percent accuracy?

https://www.chess.com/game/live/31792246269

Wow that’s amazing

yeah but im still surprised how i got out of this mess even without an inaccuracy..

Maybe you are lucky?

The simple answer?  Your opponent did not play well.  When you stay in the book and your opponent blunders, then you have a lot of leeway before the computer starts declaring your moves as being inaccurate.

You see the graph at the top right?  The two of you played fairly evenly.  And then your opponent blundered, and you didn't.