Modern ones are well done, but old chimney based ones are a notorious problem.
Cooking is really the only thing where gas has real (e.g., not cost) advantages. Nobody says “this hot water just doesn’t feel right, I like it boiled by dragon’s breath”.
But a steak burned with gas is different than one burned with hot electric.
If you have the space/configuration for it, a really nice setup is an induction stove in the house, and then a gas-powered BBQ, so then you can cook outside for things that really call for gas. (Without any effect on your indoor air quality.)
Cooking is really the only thing where gas has real (e.g., not cost) advantages. Nobody says “this hot water just doesn’t feel right, I like it boiled by dragon’s breath”.
But a steak burned with gas is different than one burned with hot electric.