It is a conservative stereotype - all mentioned brands are conservative - trust me - i am from Europe! Although „conservative“ in a broader sense - like apple - am not native English speaker!
I do not entirely agree with your comment.
The VAG group is conservative in general terms, but each brand in the group has its own type of customer.
Skoda is the most rational brand, simple cars, with correct qualities, and very practical, giving a lot of interior space in a compact size.
Seat, in terms of brand positioning is similar to Skoda, but more passionate, has much more attractive and "sensual" designs. Just look at the new Leon compared to the Golf; the current Ibiza, compared to the VW Polo or Skoda Fabia. They are more youthful cars and very fun to drive, they are almost always the reference in this sense.
Cupra, Seat's sub-brand, is looking for something more differentiating, through a mid-premium brand, something similar to what Mazda is looking for with its latest models. The Formentor is a very sexy SUV, and soon they will launch the Cupra Born, a sporty version of the VW ID.3 and the Cupra Tavascan, a Coupe SUV of the ID.4, with a rumored battery up to 94 kWh.
VW, which for me was a benchmark, for all the range of models it had, and the quality of its products, in the last 3 years has been disappointing me more and more. The T-Roc, T-Cross, Golf, etc. do not have the quality expected from Volkswagen in Europe (I know that in other parts of the world, as in the US, the image of Volkswagen is not the same as in Europe, also because the cars, even if they were the same, were not made in the same way in Europe and US). But they are sober models, with a good quality (now more than good, correct, since there are Seat and Skoda models that seem to me better inside than VW models).
The ID.3 and ID.4 models, although they also have this reduction in materials, and do not look as mid-premium as a few years ago, I do not see them as bad, taking into account the technology they have, besides that at an aesthetic level, both look very attractive to me.
Audi, is the premium brand (I mention again, maybe in the US it is perceived a little differently and is seen behind Lexus, BMW or Mercedes-Benz), but it has also lost its main features, especially at the interior quality level, again. The A1 and A3 with respect to previous generations are much worse. The design, formerly bland, continuist and boring, is now a parody of its old design, and I am not attracted at all to that line they are taking now.
Little more can be said about Porsche. Regarding this brand I can not be objective, as it is one of my favorite car brands. Great cars with timeless designs, sporty and stylish, myths on wheels.
What I want to say is that the VAG Group is obviously conservative, but it covers a very large audience of conservative people. In the end, that's what all brands are looking for, to get as many people as possible to buy their cars.
The PSA Group (now Stellantis) and the Renault-Nissan Alliance do something similar. They have a large number of brands to reach the largest number of people interested in their products.
Stellantis now has: Fiat EU, Fiat LATAM, Citroën, Opel, Peugeot, DS, Alfa Romeo, Lancia, Chrysler, Dodge, Jeep, Maserati. And as they have organized it, they are looking for something similar to what the VAG group has done.
Fiat and Citroën as entry-level brands. Fiat in Europe will pull the 500 (its myth) and Citroën as a youthful and colorful entry brand.
Opel and Peugeot as generalist brands. Opel as a sober and more elegant German brand and Peugeot as a brand that bets on a more transgressive design.
DS, Alfa Romeo and Lancia as premium brands. DS as a symbol of French luxury, Lancia as a symbol of Italian luxury and Alfa Romeo as a sporty brand with Italian design.
Maserati as the luxury brand. Italian Porsche.
Jeep the luxury SUV brand, Land Rover type.
Chrysler and Dodge... I don't know how they will end up, I see a future for Dodge, but for Chrysler... maybe as rebranded Peugeot models or something similar.
The Renault-Nissan Alliance does something similar, on a smaller scale, since they don't have a large number of brands like the previous two.
Dacia is the entry-level brand.
Renault is the generalist, which they want to position a bit above, with the new R5 and the Megane as a pillar.
Alpine, the luxury and sporty brand.
Lada will be a kind of Dacia in markets where Dacia does not sell.
Nissan will sell successful SUVs in the EU, such as the Qashqai (Rogue Sport), but will have less notoriety than before. It will focus mainly on the US and Japan.
Mitsubishi will focus on selling in Asia and Africa, where it sells well, gradually withdrawing from Europe and the US.
In summary, after this long commentary, all brands want to copy the VAG group's strategy, perhaps because it has worked successfully for VAG (despite the internal conflicts between the brands).