Cause I’m seeing a lot of people get shinies in the adventures !
One major surprise fans noticed was that the DLC's Dynamax Adventure mode seemed to have a ton of Shiny Pokemon. Last night, dataminers confirmed that Dynamax Adventures have a much higher Shiny rate than wild encounters. Players have a 1 in 300 chance of finding a Shiny Pokemon in Dynamax Adventures. Those odds increase to 1 in 100 when players have a Shiny Charm. That means that players have about a 3.9% of capturing at least one Shiny Pokemon if they successfully complete a full Dynamax Adventure.
Source
Apparently, yes.
Hope this helps! :)
Yes, they do. The odds are 1/300 without the shiny charm, and 1/100 with. This even applies to legendaries!!!
Source: https://www.google.com/amp/s/www.newsweek.com/pokemon-sword-shield-crown-tundra-dynamax-adventure-shiny-hunting-method-odds-1542197?amp=1 and the fact that I have already gotten shiny Lurantis and Lunala