ChatGPT doesn't include anything written after 2021. I certainly wouldn't use it to find an air fryer. The results will be from over a year ago. I would want to see what the newest air fryer options are and it would be really important to have to up to date pricing.
AFAIK there is not a way to update a large language model in real time. You have to train on the entire dataset to do a meaningful update, just like with most forms of neural networks. For ChatGPT that takes days and costs hundreds of thousands of dollars. Every time.
It's great for explanations of concepts, and programming, and a few other things. But with the huge caveat that all of the information you're looking at is from one year ago and may have changed in that time. This really limits the utility of ChatGPT for me.