Credit card/cash questions for travel in Canada

Discover cards are not used as much as Visa or Mastercard, but are widely accepted in major places.

Yes, we use chipped cards, and tap for purchases in some places.

You can get cash back if you pay with a debit card that comes directly out of your account. You can't get cash back if you use your credit card because that would be like a cash advance as you don't have to pay until statement is due.