vstats only counts youtube and it always look like that. Half the indie scene is on twitch, even the japanese ones.
The 40% one you remember came from a "collab event" between streamcharts and vstats for q1 and q2 (they have not done q3). Which looks more like 35% indie, 22% holo and 19% niji. This one they count both youtube and twitch stats with twitch data provided by streamcharts.
I think they counts mythic vtubers as indie though and with karubi being poached by CR, the rise of neobaka/aka virtual, Q4 might see the indie scene shrunk a bit to 30% ish.
This one for Q2
Tl;dr a lot of colors = youtube only, only blue = both.