La Germania vende Lowenbrau? Non riesco a trovarlo in America

In Passau yes. Not the same beer I don’t think (ie much better)

Yes of course they have Löwenbräu in Germany. It’s one of the six Munich PDO (protected denomination of origin) beers which are served during Oktoberfest: Augustiner, Hacker-Pschorr, Hofbräu, Löwenbräu, Paulaner, and Spaten. 

I will say, some of these beers are definitely easier to find outside Munich than others. Augustiner is kept pretty strictly local. The most common ones I find overseas are Hofbräu (state owned), Paulaner, and Spaten.

Other popular brands from nearby but not Munich are Weihenstephaner (also state owned and has a TON of history), Ayinger, Schneider Weisse, Andechs, and Weltenburger.

Some of these Bavarian breweries date back a millennium or more and are run by particularly excellent groups of monks, highly trained experts, etc. So they are definitely worthy of appreciation for greatness in brewing. 

To be fair, innumerable amounts of excellent beer can be found all over Germany, Belgium, Czech Republic, Austria, Ireland, and the UK. But all of the other countries too. 

If you can’t specifically find the chosen one, all of the rest of these Bavarian or Austrian beers will be pretty good with similar flavors, and any well known Czech pilsners or lagers will also be similar. These three regions all tend to use similar recipes and ingredients as each other. That observation might start a conflict but it’s usually true in my experience.