The main concept of course it the same. They are typically branded with one sort of beer producer like "Augustiner", "Löwenbräu" (disgusting) or other. The typical local (Munich) beer is called "Helles".

The other difference is typically the quality of the food. Some are more down to earth, some are a little more upscale (people, food, prices)

It should also be easy enough to get in touch with locals, I don't know how old you are but if you are travelling alone, just look out for others. Typically lots of Americans and other tourists around, also younger locals will also enjoy hanging out with fun people they don't know. Older ones might have language issues

As for vocabulary, all you need to know is "Bier, Schnitzel, Breze, Weisswurst, süßer Senf" :-)

Oh my, my post is full of stereotypes