Yes to both. I have a very large wall size wood buring stone fireplace. I have three other gas insert fireplaces, as well. I thought about turning the wood burning fireplace into gas many times. However, my 'just in case' state of mind always changes my mind back to keeping it wood burning.
I have a house (gas) generator as well that will take over safety. Same for my stables.
My gas & wood fireplaces will continue to work safely during a power outage. These fireplaces do not require electricity for venting and can be used safely during a power outage.
Let your life be driven with purpose!