I've mentioned Goh a few times in the past, all of it not so positive but there is an obvious reason why that is.

Other than obviously being named after the mega mobile hit Pokemon Go, Goh acts like a typical player of any Pokemon game, he picks up any and all new Pokemon he sees and only seems to carry his starter along with anyone deemed necessary for the episode task, what makes his character so annoying is that some of the Pokemon he's captured have quite unique personalities which would thrive in any other season but not with Goh.
If he were in the video games, he'd be celebrated as a challenging and unique rival trainer but in the anime he's boring.
Many question why the anime doesn't follow game logic more or why Red isn't the protagonist. Well it's because the anime's design doesn't support Goh's design, nor does it support Red's design who shares the same traits.
Pokemon is still primarily a kids anime, it's protagonist needs to share the same wide eyed enthusiasm as someone doing it for the first time and making friends for life, this is why Ash is still the protagonist 20+ years on.
Someone who just acts the same as the game is no different to the average player who's done it several times before, in short Goh is a joke at the expense of a regular Pokemon player.