If the phone came from Virgin (Bell) then it's almost certainly radio-compatible and SIM-compatible. (Assuming it has a physical SIM card slot, it's not eSIM-only.)
If it's working now (with Virgin) then it obviously isn't blacklisted.
The only problem might be a carrier-lock. Yes, CRTC prohibits the practice and yes certain carriers apparently still do it. But they are still required by law to fully unlock phones (provide unlock codes or whatever) for their subscribers on request. They are obligated to comply if your account with them is in good standing. You might remind them that you know about registering customer complaints through the CCTS.
You should contact Virgin to confirm your device isn't locked (by them) and to have them remove the lock if it is locked (by them). Best to do this while you still have an account with them, carriers usually don't deal with people who aren't active subscribers. And they know that anyone asking to get their phone unlocked is thinking about moving to another provider - be prepared for some pushy persistent retention offers/bribes and perhaps some stupid time-wasting surveys - if this bothers you then you can claim you need it unlocked because you're going to go travelling out of the country (with a foreign SIM) for a while or whatever.
If you can borrow another non-Virgin SIM card from another phone (a friend or family member, etc) then you can test it in yours. It only takes a couple minutes and a couple restarts. "Invalid SIM" and "SIM not recognized" are the classic indicators of a carrier-locked device.
If you do indeed plan to move to a new provider (from Virgin to Public Mobile or whatever) then always initiate the number port from the new provider. The old provider does not need to be informed, accounts will close automatically when the porting process is complete. The old provider might inadvertently (or intentionally?) cause problems with the number port if you initiate it from their end.
https://www.whistleout.ca/CellPhones/Guides/Unlock-Phone-in-Canada-guide
