If you’re planning to buy a couple more games besides Elden Ring as you indicated, that’s a good plan.
For myself, I generally find that other stores have better deals most of the time, so I don’t pay much attention to the discount. That said I am currently tempted to get Valheim with the sale price+discount (the discount does stack, or has) for 12 bucks just to see what all the fuss is about.
Is “wallet credit” (which I assume the “$3 back” thing mentioned in the image) something they only give for purchases on more expensive or newer games, BTW?