Hello!
With the total length of the seat surface being almost 40 inches (~1 meter), I'd say the Britax B-Motion 4 Plus is the winner here. Thanks to large wheels with tires, it can handle some all-terrain, as well as snow, better. A disadvantage would be a not-very-upright sitting position and a center of gravity that is not ideal for everyone.
If you are more inclined to the Gesslein S4, don’t worry, it is a good choice too. You may even prefer the maneuverability of Gesslein, although I am tempted to recommend Britax - because it certainly ticks most of the boxes off your list. It is maybe worth the effort to go and see/try them both in a store, ideally with a bigger child - if you have the opportunity to do so. Both of these models feature quite a soft suspension (considering them being a quick- and pretty compactly folding type, of course).
I would also consider the Baby Jogger City Mini GT2 in this case.