Well guys I still don't know why this haven't been posted here yet, but here you go: GameSpot uploaded a picture about DS3 runing on Switch. The already said it was a mistake, but if it isn't, then it just back up what Laura Dale said long ago (december maybe?).
The sources: 1, 2.
Also, I'll just give you the image and a video that explains this better than me.
The sources: 1, 2.
Also, I'll just give you the image and a video that explains this better than me.