Does the Switch edition of Skyrim feature some of these mods? E.g. fishing.
Nope,it's the Special Edition, it includes Dawnguard and Dragonborn, more than enough IMHO, it also includes some graphical enhancements, better water shaders, textures, reflections, etc.
I have that version, and it's worth it, portable Skyrim!.
Also includes Hearthfire, in which you can build your own house at specific locations, buy furniture for it, and some more stuff.