RSUs =/= stock options. At a reputable public company (FAMG, Twitter, Linkedin, Snap, etc.) you will be given restricted stock units. These are more like cash than options (they may have a vesting schedule, but once they vest, you can sell them immediately for cash value).

Also I'll note that you can bump up the SF numbers by 1K/mo for rent (which puts you well into the can easily afford a 1BR apartment range) and still be ahead on savings compared to the canadian salaries.