It’s even more complicated, as even Bavarians use the articles by context, using the proper one when speaking standard German and the variation when using diale

It’s even more complicated, as even Bavarians use the articles by context, using the proper one when speaking standard German and the variation when using dialect. Alas, not everyone has the same level of dialect, especially in Munich, so you can hear both even when Bavarian is in use. As for the plurals, the -e suffix can often both be left out and replaced with an n, so you have two singular forms for some words. But again, without the dialect it won’t work. As the GP said, you’ll still be understood, though. As with most languages, a lot of parts are superfluous and can be determined by context.