A spouse or partner outside Canada may apply for a visitor visa while a Family Class sponsorship application is in process. A visitor visa is a separate temporary-residence application and must meet its own eligibility requirements.
If the spouse or partner is living in Canada with the sponsor and the sponsor has received an AOR, they may be eligible to apply for an open work permit under the current IRCC spousal sponsorship rules.
A visitor must continue to maintain valid temporary resident status while in Canada. A visitor visa is a travel document; it is not the same as visitor status or a visitor record.