Holla!

To be honest, I didn't hack/homebrew my Switch at all, and presently may not do any proper game-related hacking unless I have a second hackable tablet or when yuzu is more developed; I managed to find out how the basic stuff like the dex is stored by comparing changes written to the save via PKHeX.

As for your question, no, and I don't think it's worth the effort as getting all of them is pretty straightforward given you can farm money (or hack in max money if you'd want) from what I've attested playing through the Pikachu version. That, and the fact Smash overshadowed these games for me.

Others might look into and add it in PKHeX in the future.