If you read the article, it’s more of an “it depends” answer.
Most phones have safety mechanisms built in to them to protect from things like overcharging or overheating during fast charging. They will also default to a low power charging state if it doesn’t detect the correct signal from the charger.
There is a very rare possibility that a charger may not be grounded correctly and that’s why it’s recommended to stick with big brands if you’re going with a 3rd party charger.
I have cat allergies, but as long as I don’t touch my face after petting them I’m usually fine.
I don’t have any cats, but I do enjoy their company when I’m visiting someone who does have them.