>>43537910That was me two years ago but just by passively listening I can understand them half the time and now I find ENG translations in chat too slow even though they are more accurate. My advice if you don't want to put in effort studying is to pick streams where they are engaging with a game you know and not using it as a zatsudan.
Game collabs (excluding apex and maybe minecraft) are great since they are usually engaged with the game and not using it as a zatsudan. Mario party streams the best since you can understand what they are talking about by context and they are very fun to watch (imo) so it's hard to get disengaged even if you don't know Japanese.
From there you can chip your way into solo game streams and eventually zatsudans.