You could probably use it in the US but I would stick with a version in your region . Like Att and Tmobile should connect but sprint or Verizon might be issue.
I'll leave a Link to register so you can communicate here as a guest account you can only post questions but can't reply
Different carriers rely upon different types of cellular networks so depending on the cellular radio chip that's inside each phone model, a phone may or may not be fully or partially compatible with some cellular services. There's just too much variance involved so generic references are just too vague. The link below might apply if you check your S20 model I.D. and know what cellular companies you're going to be using: https://www.kimovil.com/en/frequency-checker/CA/samsung-galaxy-s20-fe https://www.kimovil.com/en/frequency-checker/US/samsung-galaxy-s20-fe
Phone models typically have several variances so with a Galaxy S20 Fan Edition it might be a SM-G780F or a SM-G781B?
Which carrier did you use in the Middle East? Which carriers do you plan on using in Canada and the U.S.?