Golden game chips are really easy to get, especially by
interacting. I saved over 75k GGC within a matter of a couple
months, and most of that time, I rarely clicked over 3k Pokemon a
day.
As JustMe4031 already stated, you can find game chips in boxes you
get on Rumble missions. It wouldn't really make sense if a Pokemon
just brought back a ton of separate game coins.
How does it make sense to find Game Chips on a Rumble Mission?
o.0
Have you ever found some gambling chips out on the fields, in the
forests or in a cave?
As has been stated above there are other ways to get Golden Game
Chips and Game Chips
If its made where you could find Golden Game Chips on rumble
missions then it could take away the motivation to earn them
through interacting with other users Pokemon and Eggs.
Walking in a field and finding game chips? Walking in a furnace and
finding game chips? Climbing a haunted tower and finding game
chips? Yeah I don't think it works that way, no support.