Gen 7 was downright far the worst metagame ever in the history of the franchise, entirely ruled by powercreep and same teams.

At least gen 5 had variation with variation of perrma rain, sun and sand weather wars
At least gen 6 had more variation with teams built around different megas
At least gen 8 has variation among doubles team built around different dynamax.
Gen 7 was the same fucking shit everywhere, crowded with powercreep and cheapshots.