Best saddle for an upright (Dutch style, but actually a hybrid) bike?

Obviously planning to test the saddles on my own butt (if Decathlon allows), but I'm also very curious about your opinions, since you're an amazing community!

So my bike is an upright bike – looks like Dutch but has 2 sets of gears and is very light, so I clock in A LOT of kilometres on it, on various surfaces (150km per week on average). Unfortunately, for some bloody reason, it's equipped with a very cheap, roadbike-type saddle, that's bent roughly like a banana. My only choices with that saddle is either to be given a constant wedgie (if I sit back) or to get my private bits chaffed to dust (if I lean more forwards).

I know the Selle Royale saddles from the city e-bikes, and they are a dream-like level of comfort, so I want to gift myself one. I was planning to go for the last one (since it's the exact model I know from the city bikes), but then I've learnt that there are actually special saddles for upright, Dutch-style bikes?! With extra amortisation (which would be amazing as my bike has none)…?

Is anyone in here using one of these saddles for distances longer than 20km? How does it feel (I prefer flat saddles without the cushions sticking out)? Do they chafe, do the springs help with absorbing shocks? Very curious!