I think Jonas did a good Dauphine, even compared to expectations. The level was extremely high. When was the last time he competed at such a high level? Probably TDF24. I believe it will help him tremendously.
Just the peloton skills themselves...Take stage 6 for example: Just as Sivakov was emptying himself before pulling off, Jonas was out of position and had to make a big effort to move up. That cost him , cause he had no time to recover. Then he made the mistake (not really, cause you want to see where you are) of going too deep and it caused a complete explosion which resulted in a 1 min gap.
Visma and UAE are taking different approaches, So I wouldn't draw too much from the Dauphine, at least regarding the differences between them. The battle ground is the TDF, always has been. Don't forget Tadej killed him in TA22 and PN23 only to lose the Tour on both occasions. It doesn't mean it's gonna happen again, just that these 1 week races are a totally different ball game. Of course Tadej is stronger in those races, he always has been. He is the stronger rider overall, again no surprise there. But the Tour is so much more difficult, this is where Jonas can compensate and has shown it in the past.
I don't think we've seen the best of Jonas yet, he'll probably increase his level further during the next few weeks. This plus the very strong team gives me every reason to be optimistic.