Vaporeon VMAX's "Bubble Pod" attack says "put a {W} Pokemon from your discard pile onto your Bench". Does that allow me to put a Stage 2 or VMAX Pokemon directly onto the Bench?
As long as it's a {W} type yes, that's how it works.
Source: Evolving Skies FAQ; TPCi Rules Team (2021-08-26)

Relevant cards

Note: All applicable cards may not be listed below.
SWSH7_30
SWSH7_30