In any case, apart from all this, accuracy is dependent on the game itself. In a calmer game, it is easier to have higher accuracy than in a sharper game.
Here is a link and a graph that compares how it was before and how it is now:
https://support.chess.com/article/1135-what-is-accuracy-in-analysis-how-is-it-measured
Appreciate the article, I know conceptually how the formulas work but didn't look at any of the math and didn't know about the grading curve.
You're welcome.
As a 2000+ I think that if you have 65%+ accuracy as an 800 your doing well