"In which games was it possible to legitimately catch starters in encounters? I’m aware of a few"

I’m interested in figuring out which games one could legitimately catch starters, in order to catch them in different poke balls.I’m aware of:Legends Arceus: Sinnoh Starters, Hisui Starters in OutbreaksBDSP: roaming starters in the UndergroundBut I thought in most other games, the only way to get other starters is to trade for them. Was this possible in other games, like SWSH or USUM? via /r/pokemon https://ift.tt/VBIR8uj