Its stiff enough for us, its fine without them. If we have a level site, we don't use the jacks. I have a set of bubble levels installed in the cab, i can view them from the drivers seat. I just position the rv until its level. I don't use the jacks very often.
We use our rv all the time for day trips. We are used to not using the jacks and don't notice a ‘wow’ factor when we do. We go places during the week and eat dinner in it for a change of scenery during covid. It has to be really gusty for the winds to rock us.