Should you purify Shadow Regigigas in Pokemon GO?

Regigigas is making a comeback in Pokemon GO, and this time, it is available in Shadow form.

Analysis on Shadow Mewtwo and future shadow legendaries in raids (How good is it? Should I get multiples of it?)

Should I purify or leave as shadow? It's my first Regigigas. I've never been too knowledgeable about benefits of Pure vs Shadow. : r/pokemongo

I Purified My Shadow Mewtwo to Get a Perfect Attack in Pokemon GO #sho

5 Shadow Pokemon you must get in Pokemon GO Halloween Takeover 2023

Regigigas, Pokémon GO Wiki

Analysis] Shadow Garchomp as a raid attacker: An upgraded but specialized Shadow Mamoswine - Pokemon GO Pokebattler

Pokemon GO: Should You Purify Shadow Pokemon?

From Rhyperior to Regigigas: A Guide to the *New Shadow Pokémon*

Pokémon Go CP calculator guide