Four hobs and a good oven/grill is ideal. People like quick meals when they're on holiday - pizza and salad, Cook meals with veg. You can't really cook a pizza in one and lots of 'quick' meals (including Cook) require an oven for best results rather than a microwave. It's doable to not have an oven, but you'll discourage longer stayers.
But, honestly, I'd have one installed. People are purposefully thick when it comes to booking holiday cottages...I've had some baffling complaints from ours.
Someone complained about the garage being locked (yes, because we store things in there and it's in the description), someone complained that the driveway is too tight for a big car (yes, also in the description). Once we had someone complain that it was open-plan...there's a literally floor plan of the property included in the photos and it's described as 'open-plan living.'
My all time favourite will forever be the person who complained there was no coffee machine - even though it's listed as 'not-included' in the 'key information' - and tried to ask for a full refund😀
So, take from this, people will complain about everything, not read the information and then lie to try and get a refund. Pre-empt that because it's the best way to keep bookings coming - a few bad reviews can tank a property if it's just starting out in the market.