I wrote is elsewhere but I’ll write it again here:
Inflation affects physical goods because you need to make the product from the ground up every single time. And those materials cost money, and rise with inflation, so making the product from scratch each time gradually costs more as time goes on. Hence why they need to raise the price of the finished product - otherwise they'd literally lose money on each sale.
Digital goods don’t work this way, once the product has been made it can freely be distributed without having to be remade again and again.
Yes, it costs money to patch and update. But that’s not comparable to rebuilding the product from the ground up like with physical goods.