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

[Vodacixi]

In my case, it's 50/50. Which is still an insane ratio compared to what I had on PS4 (and now on PS5). In fact, for PS4 I have zero physical Sony games (The Last of Us and God of War 3 came with the bundle and I sold them afterwards) and for PS5 I only have Demon's Souls.