Gas ovens poison your home and make you stupid.
That depends on how well vented they are. Most people undersize their range hoods for aesthetics and don’t take venting seriously. Of course recent findings show it’s a bad idea to cut corners on that with gas stoves, and ovens to some extent. But it’s mostly stoves that have the issue you describe.
While they are less of a problem when they’re better vented, they’re still a really big problem. You can’t possibly vent them well enough.
Still sounds like you’re talking about stoves. To use a stove, you inherently need to stand next to it and your face is between the flame and the vent. Ovens are well insulated (this is important for energy efficiency), they vent to the outside, and you are not generally standing over the oven throughout the baking.
