pokemon go - What are these groups in Pokémon Go? - Arqade

I was poking around Pokémon Go and noticed the Pokédex Pokémon are in groups: What do these mean?

How to AR: Group/Shared AR

How to AR: Group/Shared AR

Here's Some Math To Show How Pokemon GO's Raids Have Badly Broken The Buddy System

pokemon go - What are all the filters I can do to search for Pokémon? - Arqade

pokemon go - Weird Trainer Naming Issue in Gym - Arqade

Pokemon Go - Remote Raid invites

What's this strange symbol above the CP in Pokemon Go? - Arqade

pokemon go - What is this warning about cheating? - Arqade

Pokémon Go: Is it a game changer? — The Gamer's Lounge

Can I see a list of gyms I left a pokemon at? - Arqade