With that in mind, there are still compatibility issues so support for every single game cannot be guaranteed. Proton works as a compatibility layer so that even Windows versions of games can run on Linux. The Steam Deck uses the latest version of SteamOS, a type of Linux operating system that works with software callled Proton. The $529 and $649 models also include a carrying case and an exclusive Steam Community profile bundle, while the $649 model uses 'premium anti-glare etched glass' and comes with an exclusive virtual keyboard theme.
Games played on an internal SSD will load much quicker than games stored on an SD card and may perform a bit better as well. It is important to note that the faster SSD storage cannot be expanded, so you should consider that carefully when thinking about what model you'd like to get.
