First I've heard of a push for electric stoves but 12v fridges seem to have become standard around 2021 (it's a transition not a hard stop).
As part of this, you are seeing units come with solar from the manufacturer.
Our current trailer has a 10cft 12v fridge in the cabinet for an 8cft propane fridge along with a 50w panel (with newer units are stating around 200w). Plus it cools much faster when you start it up or add warm food.
Over the summer doing Alaska we did a fair number of off grid overnights and typically, the next morning our basic pair of 12v batteries were around 12.5-12.6v. Figure we could do 2-3 days with that system if we had to and it would be easy to upgrade the solar for near unlimited time.
Very few people spend several days not moving, not running the generator, in a heavily shaded campsite. As a result for 99% of buyers, the move to a 12v fridge is an advantage not a loss. I expect within 3-4yrs, you will have to special order a propane fridge with many manufacturers not interested in doing it even as a special order.
I expect propane stoves will be around longer as you still need propane for the furnace and feeding the drastically higher power consumption is more of an issue.