That is absolutely SRW, many minutes of talking and in quite a few games, battles being interrupted for more dialogue, i think some SRW games had records for being the games with the most dialogue in the world, surpassing even visual novels, you can fast forward or skip dialogue though.
As for lack of knowledge...the games are much better if you are a fan, there isn't a single game where i have seen every single series, but usually some that i like and while they do explain things, as no series gets the same setting due to mishmash of series, because they know there will always be someone that hasn't seen one series, it's usually more fun if you have seen the series, as many times they cut a part of the plot if not making a series post plot and them making references to the past, but, again, done in a way you can just shrug off, but there is a reason why people call it a fanservice franchise, if you just like mechas they work pretty well even if as really easy games, but otherwise...they are honestly kinda forgettable.
There is the SRW OG series, which has no anime characters, but there's been quite a few games done already and only the last is available in english and you lose a lot by not playing the previous games.
If you play SRW, try to avoid the space routes, there are usually Earth/Space routes and Earth routes tend to focus on the simpler series or less popular ones quite a few of the time and thus you can get more focus on the original plot while Space Routes get far more into the plot, particularly since these routes tend to get the most Gundam characters and Gundam is so popular they feel like shoving in the plot and characters more.
Of course, Earth routes also tend to be a bit more silly, as they also get the more Super Robots shows and fast forward the plot a bit.
