Different poster, but just this morning I was looking for a simple non-smart grounded switch with a physical on/off button in Canada.
Amazon has a couple I could find:
Belkin for $21: https://www.amazon.ca/Belkin-F7C016q-Conserve-Power-Switch/d...
Leviton for $14: https://www.amazon.ca/Leviton-1470-W-3-Wire-Grounded-Switch/...
Local Rona store has the Leviton for $5: https://www.rona.ca/en/plug-in-switch-125-v-white-01815677