Pretty much the definition of a quality thread but one thing, You didn't felt anything special for the rumble in Zelda simply because Zelda does not use the HD rumble, and from the 2 minigames you played on 1,2 Switch, I think only the Milking one use it so chances are that milking was your only experience with the HD rumble.
As for Zelda having dips, I actually think they first do the portable version and later they work on the TV mode, that's why some games are still in 720p in both modes and also that's why Zelda runs better in handheld mode, as the optimization for that mode was already done, so chances are Zelda was still in optimization period for the TV mode in that build.