Heating in the kitchen "necessary"?

Because I would actually keep the concept so that when you go out the door, the dining table is placed relatively in the middle. Visually, I just like it that way. Well, you can shift the door a bit, that's not a problem. Generally, I want to stick to the layout and keep the kitchen where it has been so far. I think we are also straying a bit from the topic, but thank you for the ideas/suggestions. I will go over it again with my wife later.

Under no circumstances omit heating. Kitchen means a lot of steam, plus cold walls = condensation = mold

If you are renovating anyway: why not install (electric) underfloor heating. Such a 10m² heating mat does not cost a fortune and simply lies as a very thin layer under the floor covering. If the kitchen is new (rearranged), the floor has to be redone anyway, as significant color differences will have developed under the cabinets.

My plan was actually to install underfloor heating throughout the entire floor (have it milled into the screed), but my wife didn't want that. It would have had the advantage that we could have replaced the convector in front of the glass front in the living room. I don't find that beautiful, but well, what can you do when your wife is against it. Maybe she'll change her mind after all.
Electric underfloor heating, hmm... sounds good at first glance. Only when I hear heating with electricity, my alarm bells usually go off (possibly unjustified), but maybe one should calculate what costs would arise here.
It will be newly tiled anyway, that's clear.

The mindset "a kitchen always gets a bit of cooking heat into the air, so you don't need additional heating" is mistaken, because: this heat supply is irregular, it is not stored by anything, and it is released again in an unplanned, uneven manner. The cooking heat therefore does not lead to a reduced heating demand, but only to peaks that are better targeted and reduced. A heater in the kitchen should therefore not only exist, but preferably be well controllable (i.e., instead of removing it, it is better to retrofit a thermostat, as there is probably still a simple on-off knob on it). One should consider that temperature fluctuations also affect the shelf life of food. Is this actually a Renolit prefab house? – there are, to my knowledge, renovation specialists for that, but I don't have any names at hand right now; however, if I recall correctly, they can be found like the company that used to be around Worms.

: Ok, I think it will probably come down to a heater after all, only the type is not quite clear yet
It was not about reducing the heating demand, but simply about whether a heater is really necessary in this room at all, since I am not 100% satisfied with the skirting board heater and a normal radiator is rather not ideal due to lack of space.
Yes, it is a Renolit prefab house, the company you mentioned is known to me, it's called "Remosan" (in case anyone is interested).

What does your wife have against underfloor heating?