>>46912055I'm afraid I don't have the dataminer tweets at hand, but basically, Pokémon Let's Go Pikachu and Let's Go Eevee have a Frankenstein engine featuring code from the Nintendo SDK (used for BotW and Mario Kart 8), it features file formats from Lunchpack (Splatoon 2's engine) and it features Game Freak's own additions, along with Game Freak's new model format, gfbmdl, or Game Freak Binary Model. It actually doesn't share much with the previous gfmodel incarnation from 3DS days.
SwSh once again was made using that same engine, tweaked obviously, but still made from that, and looking a LEGENDS we can be fairly sure it's once again that same engine.
If you search on Twitter you might find the original tweets, I think it was the usual suspects, SciresM and co.
