I can't tell if you're being deliberately passive aggressive so I'm going to give you the benefit of the doubt and assume it's a language issue. I obviously don't have the answers. Like the vast majority of other non-German football watchers, I don't bother wasting my time with the Bundesliga because the product and competition is effectively non existent. As a result, I don't know what solutions to the problem people in Germany are discussing. As warped as La Liga is due to the completely unfair splitting of TV revenue, there has been 3 different winners in the past 4 years. In Italy there has been 4 different winners in the past 4 seasons (assuming Napoli don't fumble it from here). Even in France with the billions of PSG it's more varied. In Germany, the last winner that wasn't Bayern was 2012. Italian and Spanish clubs are both much more successful in European competitions, whereas with Germany it's primarily only Bayern although obviously Frankfurt won the EL last season.
On point 2. Again, I obviously don't watch the Belgian (does anyone outside of Belgium?). But I don't see why that sort of format should be dismissed out of hand as a solution. Although Club Brugge have won the previous 3 titles in a row, previous to that Genk, Anderlecht, and Gent have all won it relatively recently. I mean, it sounds like an extremely exciting way to end a season.