Nintendo didn't really need to do any marketing beyond "Hey we are releasing a new Zelda game, it will run on the Switch you bought years ago mostly in order to play the previous Zelda game".

I've been playing games for 30+ years, at no point have I cared deeply about the difference between 30fps and 60fps. I do not like 5fps-stuttering, which happens sometimes in poorly optimised AAA games no matter how good (within reason) the GPU.

The new Zelda runs well and looks good. I like it, though it's very much "BOTW Continued" which maybe we didn't need, I might have preferred a completely fresh world & characters instead of the same Hyrule a few years later.