An even cheaper price for Far Cry Primal provided you are happy buying it through Epic (for Steam see the other deal I posted) - for me it would not matter as ultimately it is launched through UPlay anyway.
Thanks to baldur for pointing it out.
Note: Checked again and when I log in the prices for me in USD are $4.99 for the standard edition and $5.49 for the Apex edition. So technically, they are cheaper by a few cents on Epic than on UPlay directly. Unexpiring the deal again. Sorry for the confusion.