A:AnswerThere are no switch games exclusive for the OLED model, or any model for that matter. They are all essentially the same console, they just vary in design and screen tech.
A:AnswerNo, but there are some free games on the Nintendo eshop but some may require internet and/or Nintendo Online Access which is a monthly subscription to play specific online games
A:AnswerWhen I went into the physical store, they didn’t have them posted online or even have them on the floor.
I had to personally ask a worker if they had any in stock. & sure enough, they were all in the back.