Valve could still operate as it currently does, including having sufficient profits to account for R&D and long-term costs, at a lower cut of platform sales (as another commenter mentioned, Gabe Newell’s billion dollar yacht collection is demonstrative of the platform’s profitability, especially when one considers how much it costs to maintain ships). Products such as the Steam Deck make money for Valve too, as Steam Deck users (myself included) statistically buy more games on Steam as a result. I don’t support profiteering efforts by game publishers either, such as the Factorio price increase attributed to inflation, $70 game releases attributed to inflation when digital releases have reduced their costs, and micro transactions in general. In any case, however, given that cost increases are always the consumer’s responsibility, cost decreases should not simply be a means for companies to bolster their profit margins.