@Benjoffi I know EXACTLY what you need! That's the good news; the bad news is, I don't think its made anymore.
My aunt moved into a new upscale home in 1960 in suburban NY about 30 miles outside the city. For the time, of course, it had a modern kitchen. Electric cooktop, a standard (for the era) vent hood that exhausted through the wall above the cooktop. Behind the cooktop was a built in pantry, space for the refrigerator, and a cabinet holding a 27" wall oven.
Now here is where it gets interesting: JUST ABOVE the wall oven, in the same cabinet, was a "pull out vent". When closed, it looked like a part of the oven. It was 27" wide, and about 6" tall. There was a small handle on the bottom center. When you pulled it out, it opened a bit creating a venting area about 4" deep and the 27" wide, and it turned on! It exhausted UP through the roof. I want to say this was stainless steel, and made by Broan.
This did EXACTLY what you are trying to do; capture the cooking odors and exhaust from the oven and take them away. Try as I might I have not found anything manufactured currently that is anything like this.
Now, these photos show something SIMILAR to what my aunt had, though not precisely; one looks like a miniature vent hood, and it does NOT look like the hood retracts...but my guess is this is EXACTLY what you are looking for. I think today kitchens are more standardized than they were mid century, and venting has gotten more sophisticated. In my last kitchen update I had a 48" cooktop with a 48" Vent-A-Hood with 4 x 300 CFM blowers; when all were running they'd suck your fillings out. That kind of stuff didn't exist 60 years ago.
If you search images for "vintage kitchen wall ovens" you will find a few with varying concepts like that shown in this photo. If you have the budget and are so inclined, you might pursue having something like this custom made at a place specializing in custom kitchen or restaurant vents!