Here is a tope for mostly those who do game reviews more so the members who support chess.com

When doing game reviews, why is there always a flat line before 2020, is that when they started doing reviews of games?

A screenshot is needed

you can see up until about 2020 there is no stats that are shown on this graph

Ok, so:

1. This is not the game review
2. According to your game history you were not playing rapid between October 2017 and September 2020

but that is not true as I have been playing basically all rapid games since I've been supporting chess.com since 2017 and even before that on an older lost account...its just a glitch I guess.

Currently your rapid game history shows the gap:

At the same time there are many games with rapid time control in your blitz game history:

all 10 min formats when did that all change lol

Seems fine for me

Oh 2020...

10 minutes games were considered as blitz before September 2020:

https://www.chess.com/news/view/10-minute-chess-now-rapid-rated-bullet-ratings-increased

And in October 2017 you played four 20 minutes rapid games which have always been considered as rapid

I feel like this guy: