I'm Belgian. Avoid Leffe, this is a quite bland "Belgian beer". The classic Trappist beers are always a good choice (Orval, Chimay, Rochefort, etc.), but don't sleep on the new microbreweries, their beers can be quite innovative and refreshing
There was a stretch if time in the late aughts where I found a store that had aged Cantillon on the shelf at the going rate. I was buying Rose de Gambrinus with 5 years on it on a regular basis. So many great old beers that store didn't know they had. The only bad bottle was a Strange Ghost which tasted like rancid Parmesan.
As a Czech I would also suggest to go for smaller brewery, because of our tax system the beer is just negligibly more expensive than from big brewerys.
I will be in Belgium hopefully in about 3 months and because I will bike there I will have a lot of time for tasting. Also I will like to visit some beer festival, if the timing will be right.
I'm in Germany and people rave about their bread but I live in Mannheim and it's like... Okay? I don't have a bakery here that I like more than the ones in New York (specifically) or France (seemingly anywhere) or Vietnam or Japan.
Maybe it's because I haven't found how to use them properly but there just doesn't seem to be a large amount of diversity. Like I'd expect fresh made hamburger buns, the Bahn mi bread, like a good sub situation, fresh rye bread, idk. Also for a country to have good bread I need to be able to walk into any corner bakery and be satisfied 4/5 times.
Beck's is definitely overrated. I don't know how it's become so popular.
On the other hand, Labskaus is damn delicious, I need to make a vegan variant one day. Labskaus and kale with potatoes and meat variety is what I really miss since turning vegan.