Yes, TurboTax Canada 2020 or 2021 supports Non-Resident Tax filing.
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I have tried Chrome and Firefox and cleaned their cache but still no luck..
It's strange though that CRA website stats that non-resident cannot use NETFILE:
https://www.canada.ca/en/revenue-agency/services/e-services/e-services-individuals/netfile-overview/eligibility.html
so I'm suprised how Turbotax Canada supports non-resident tax filing.