How is that remotely relevant to the fact he originated from a video game?
There are actual Digimon who originated from the manga/anime first. Like Blackwargreymon. Agumon still started as a game character.
Also, not everybody knew Pokemon from the games too. It released in Anime form in some countries before the games.
Doesn't matter at all. If anything, it just means Agumon will likely reference the anime more with his design, just like how Pokemon notes the anime in multiple ways.
Also, the reason the anime is more known than the games for a lot of people is because the anime is just plain higher quality and consistent with its design. The games constantly have awful ways to digivolve, crap balance, tons of illogical evolution paths, strange plot points, and many didn't release outside of Japan. It's not as worldwide. It makes tons of sense of what people know it as. However, when it comes to actually adding a character, their origins play a way bigger role than just fan perception. Agumon is a popular choice, and Digimon is a very popular franchise(though yes, it has slowly gone down in popularity, though many of that is a lack of games outside of Japan and that the later anime seasons changed things up a lot enough to get people uninterested.
And some people know Agumon for "BOTH" as well
That still means Agumon is a videogame character.
It's not up to opinion or popularity or how people get their knowledge of a character.
He's from a videogame, ergo he's a videogame character.
that, many overseas fans of the dubs aren't going to be as interested in Digimon Adventure Tri due to the fact it has music they won't recognize, and a style that isn't normally in the dub. Things like attacks being called out is a consistent dub thing, so this makes it hard to appeal to them. It's very understandable why Digimon has a weaker overseas fanbase. Things aren't like it was before when it was far more popular. Pokemon kept the same overall formula with smaller changes, with only Sun/Moon somewhat changing it up, and not entirely. It still has a similar basic idea of the original style).