This has been discussed a bunch before:
How bad is my gas stove? (carbonswitch.co) - 369 points, Jan 15, 2022, 524 comments
https://news.ycombinator.com/item?id=29935939
I measured the pollution from my gas stove (distilled.earth) - 174 points, 5 months ago, comments
https://news.ycombinator.com/item?id=34316613
If you are considering switching to an induction hob, they are brilliant, I love ours. Just make sure you have good ferrous pans, I guarantee that all bad reviews you hear are due to people having the wrong type of pans.