I admit that the Steam's Fall sale flew under my radar. I thought that it would take place later in October but Steam's Autumn sale is now live from September 29 to October 6. No word yet when GOG's autumn sale will take place. Steam's Winter sale will start on December 18.

Some notable games wishlisted:

Back 4 Blood (90% off) C$ 7.99
Railway Empire (80% off) C$ 6.79
Let Them Trade (20% off) C$ 18.79
Kingdom Come: Deliverance II (30% off) C$55.99
Island Farmer (30% off) C$ 1.81
Age of Darkness: Final Stand (50% off) C$ 17.99

Some notable games you can consider:

No Man's Sky (60% off) C$ 31.19
Ready or Not (50% off) C$ 29.99
R.E.P.O (30% off) C$ 9.09
Kynseed (40% off) C$ 19.50
Cyberpunk 2077: Ultimate Edition (53% off) C$ 51.50