A comment from Portugal
Yer Wha? SuperBock is under fire? Eeek!
'Tis, of the beers here, mine of choice. As with the spread of lagers more generally it's really much like Dos Equis, etc, etc, around the world in origin. Germans and Czechs - some argument over that - worked out mid-19th how to make lagers and bottle/barrel them. Able to chill and brew year 'round (that Oktoberfest thing is about not being able to brew on the plains in summer, so let's celebrate the first deliveries of the autumn from the hillsides down to the plains).
So, once this was worked out likely lads spread out around the world with the new tech. And all sorts of countries have a lager beer brand, which is really just which likely lad arrived and prospered.
There may be more complexity to this story but that's good enough as an opener.
Portugal has two which have survived in large scale, Sagres (named after the city) and SuperBock. As I say, I prefer the second, But a little advertising story. One SuperBock ad a few years back was an opinion poll they'd done in Sagres. Something like, from memory, "The majority of people surveyed in Sagres said they preferred SuperBock". Which is very fun and most amusing.
I never did follow the story for long enough to find out how many times they'd had to conduct the survey to get that result.