Crime rates are quite low, and visitors are unlikely to encounter any problems if they exercise basic precautions: such as being aware of surroundings as petty theft and scams do occur and taking care when swimming due to strong currents, particularly on the east coast.
The Government of Canada provides more travel information about safety and security concerns in Qatar on its website Travel advice and advisories for Qatar - Travel.gc.ca
As always keep abreast of the current covid situation as well as any government restrictions or concerns and ensure stay up-to-date on the status COVID pandemic to travel abroad .