Exactly. Not that many countries have a "classic" derby.
You have River-Boca which is the world's most iconic derby and its Superclásico name is more than deserved. And it is the original "classic" derby.
The Clásico is essentially a copy of that, yet not really comparable. It was mostly Barcelona's attempt to pretend they were rivals with the Madrid clubs due to their political complexities and the Franco regime. They viewed Atlético Madrid as equal rivals until the Laszlo Kubala saga (Barcelona winners) which was followed by the Di Stefano saga (Real Madrid winners). Real Madrid dominated Spanish football ever since that and the Basques (Bilbao and Sociedad) were the first to break the reign. The 70s were quite even with Atlético, Barcelona, Real and Valencia winning something while other teams where around too. The rivalry was heated due to politics, not football. The late 80s is when the rivalry became genuine and the only reason it remains "El Clásico" is because Deportivo never managed to stay at a competitive level, Betis screwed up their chances to become a top team, Valencia collapsed while Atlético Madrid was unstable and managed to get relegated with Ranieri managing a top 3 candidate. Barcelona had it ups and downs but both them and Real managed to stay at a top level.
The German league is not that different. Bayern wasn't really a top team until the 70s. And they usually were one of the top 3 teams over the next three decades. Then German football fell behind as they didn't follow England, Italy and Spain in flooding yheir teams with foreigners. Dortmund emerged in the 90s with Ottmar Hitzfeld and then they managed to slowly be integrated into the elite of German football. That was because Gladbach, the original strong Borussia, collapsed after their epic 70s run, Hamburg was more shit than not, Schalke didn't reach another peak like the 30s and 40s, Werder had a strong run after Rehaghel and that was it, Stuttgart never became a dominant force, Wolfsburg had a few good years but that was it, Nurnberg is a non-factor, yet still are 2nd in league titles (think of them as Genoa/Torino kind of club), the 1860 team never took off and Kaiserslautern was a firework.
Bayern became what it is in the 80s. No other team managed to parallel this run and even Dortmund doesn't look much different from the Werders, Hamburgs and Stuttgarts of yesteryear. The only thing they have in advantage is media being more focused on football and more international these days.
The only genuine candidate for a "classic" game for Germany would have been Bayern München vs Nurnberg. But it never happened.
Dortmund vs Schalke is not relevant enough, Werder vs Hamburg is a non-factor and so on. Gladbach vs Bayern could have also been one but Gladbach never maintianed that level.
England also lacks this. Liverpool vs Manchester United is mostly an internal geopolitical rivalry and a history book one, as in who will fill the history pages rather than being main rivals of each other. I made a post on this some time ago, I think amongst their 60+ trophies they competed with each other for less than 10. That's not a genuine football competition rivalry, it's mainly a statistical occurrence. Usually one is quite shit when the other is winning.
A real rivalry is Inter vs Juventus for example. It has everything and it goes back to the 1920s, making it one of the few 100+ year old competitive rivalries in football.
Other European ones are of course Celtic vs Rangers, probably the oldest heated rivalry in the world. And it's actual hatred.
You have big games in Portugal as well but not to this extent, you have the Greek classic derby which also dates almost 100 years with Panathinaikos vs Olympiacos. You have Partizan vs Red Star in Serbia. You have Ajax vs Feyenoord in the Netherlands.
Countries like Germany, France and England just do not have this. They have more parity and less dynastic rivalries. And when they have dynasties, they're usually unrivalled or the second fiddle is not a constant.
Manchester United had Arsenal, then Chelsea, then Manchester City as main rivals during Ferguson era as main rivals.
Liverpool had Leeds, Nottingham, Aston Villa and Everton. I think therr was a Liverpool and Everton run in the 70s or 80s that was the longest streak of league titles staying in the same city in English football.
Whereas in France you had St Etienne, Marseille, Lyon and now PSG being dominant. Without much trouble. The only times the league was competitive was in the 50s, with Reims usually winning, the 90s and the late 2000 after Lyon collapsed. Based om how UEFA fucked football, I don't think we'll see an end to PSG's run. Just like Bayern cannot be stopped in Germany either.
It's just funny to compare some genuine rivalries with some marketing attempts that are being made. Even Milan vs Juventus is a fictional rivalry to some extent. Only surfaced in the 50s and wasn't really intense, something like Arsenal vs Manchester United. They competed for trophies, but they all have other priorities when it comes to rivalries. The Italian duo of course share their main rival in Inter, which is also why they never really hated each other that much.