Switch is doing amazing globally considering it's going to be 7 in a little over 5 months from this data.
PS5 is on the ramping up phase nearing its peak years (which calendar year 2023 will probably be one of them) thanks to wide availability (for those that will pay for Sony's asking price) and its large library of PS4 and PS5 games.
Xbox Series X/S has probably nearly matched Xbox's lifetime sales (as of the unreleased October figures), is outpacing Xbox 360 by about 2.7 million, but is slightly behind Xbox One in the same LTD period. If Xbox Series X/S doesn't ramp up sales soon, it's probably going to finish right around the Xbox One.
PS4 managed to sell over 20,000 units in September. We'll have to wait for Sony's confirmation of discontinuation to know how much sales are (roughly) after discontinuation. For all we know, Sony could've discontinued PS4 earlier this year and are only selling remaining stock.
Lifetime Sales Predictions
Switch: 161 million (was 73 million, then 96 million, then 113 million, then 125 million, then 144 million, then 151 million, then 156 million)
PS5: 115 million (was 105 million) Xbox Series S/X: 48 million (was 60 million, then 67 million, then 57 million)
PS4: 120 mil (was 100 then 130 million, then 122 million) Xbox One: 51 mil (was 50 then 55 mil)
3DS: 75.5 mil (was 73, then 77 million)
"Let go your earthly tether, enter the void, empty and become wind." - Guru Laghima
