[gamblor956]

Wouldn't Steam, MSTF store, Epic, etc. all count as DRM?

They could, which is why I was careful to point out that you can install an OS on your PS5, on which you can then run (some) games on it without having to circumvent DRM.

If I buy the Switch and the game, I don't see how there could be any argument that I should be considered a criminal for using the data on a PC.

Because U.S. (and EU) law doesn't have any exceptions that would cover that use, since the Switch is still being actively sold on the market today. (And as noted elsewhere, this is a large part of why SNES, N64, and Gamecube emulators haven't been targeted by Nintendo: the machines are no longer sold and so emulation allows for archival use/access to games on those platforms. This is generally a permitted use.)