Around here, the gas used for cooking is natural gas, which is not toxic in the technical sense of the word, though one could theoretically suffocate from it.

I say "theoretically" because I can't recall hearing of a single instance of such a death, while deaths from e.g. carbon monoxide poisoning are far from uncommon.

Natural gas stoves still have health risks:

https://www.vox.com/energy-and-environment/2020/5/7/21247602...

Interesting! I did not know much of that.

It feels toxic enough. I always open the back door when we have our natural gas oven on because it makes breathing unpleasant otherwise.

That is the additional gas that is mixed in to help you notice a leak. Natural gas itself is odourless and you’re unlikely to notice it.