I wouldn't want to commit myself to that statement. There are other factors that also speak for the Czech Republic or Germany as the beer country. In my very generalized view Belgian beer is very malty, sweet and sometimes very fruity on purpose, so you get a beer you can enjoy almost like a wine. In Germany you get smooth and refreshing beers to drink all day every day, especially in Bavaria where the Reinheitsgebot was invented by some king in 1516 which limits the ingredients in it's original writing to only barley, hops and water. Nowadays it's more like malt, hops, yeast and water due to the different beer styles. Speaking of beer styles the most famous style Pilsner was most likely invented in the city of Plzeň, Bohemia, Czech Republic. Cheers 🍻