Salut! Canadian French is a way of speaking French that is different from the way people speak it in France. Just like how people in different places can speak English differently, people in Canada who speak French have their own way of saying things.
One reason for this is because Canada was originally a French colony before it became a part of the British Empire. French people lived in Canada for a long time, and over time their French language mixed with the languages of Indigenous peoples who also lived in Canada.
Canadian French also has some words and phrases that are different from the French spoken in France. For example, instead of saying "bonjour" to say hello, Canadian French speakers might say "salut" which is more informal.
Overall, Canadian French is just a slightly different way of speaking French that has evolved over time in Canada.