Pokémon has long been a series that makes small changes to each game that are nigh imperceptible to non-fans. To people who haven't kept up with the series, Pokémon Sword and Shield might as well be a 3D version of Pokémon Red and Blue. They wouldn't be wrong, as far as the basic mechanics go. While there have been new types of Pokémon introduced, and new wrinkles like Dynamaxing, for the most part you'll be taking on one-on-one battles with the creatures you train, same as it ever was.
This is a companion discussion topic for the original entry at https://www.vice.com/en_us/article/m7qbga/temtem-is-the-pokemon-game-nintendo-refuses-to-make