"Nintendo users only buy Nintendo games on Nintendo systems" How true was this?

[DonFerrari]

TeachMeHisty said:

Not gonna lie, I would be really interested in how 3rd party games typically sell on PS and Nintendo systems. Not in numbers, but what their pattern is.
In my head, I have this image, where (lets take JRPGs for example) games sell better on Nintendo-systems initially, but slow down faster and maybe even earlier
resulting in a sales-curve that looks somewhat like this:

Does anybody have any data about this?

Most titles on PS and Xbox are very much front loaded, ever green is basically a term for some Nintendo IPs and very few games from other vendors.

Just for you to have an idea Capcom announced it done 1M on month launch, 1M on the month after that and another 1M on like 5-6 months after for SF6. If you look for SM2 it is something like 5M on the first day, maybe up to 1M additional for the rest of that month and no more than 4M on the over 2 month after that.