Need help learning the technical side of Pokémon Champions

Pokémon Champions just dropped on mobile today and I'm really excited to dive in. I'm not totally new to Pokémon - I've played some of the older games before through emulators, but I never really got into the technical side of things like stats, strategies, or competitive play.

Right now, the only official Pokémon game I actively have is Pokémon GO, so that's where I can pull Pokémon from. But I want to actually understand how Champions works beyond just casual play.

Does anyone know good places to learn the mechanics and deeper gameplay? Like guides, YouTube channels, Discords, or even just tips from experienced players. I'd love to get a solid foundation so I don't feel lost while everyone else is already figuring out the meta.

Thanks in advance, and good luck to everyone starting out today!