Valve disabled HDR during Remote Play game streaming on the Steam Deck OLED in early October alongside its Big Art Mode update. Although it was never specified why the feature was disabled, there were reports of bugs and issues with HDR support on the Steam Deck OLED, and it seems as though Valve had been working on revamping HDR support on the Steam Deck OLED altogether, according to a recent Steam Client beta update.

The update notes for the latest Steam Client preview/beta update cite an overhaul for Remote Play, adding a host of features and options as well as re-enabling HDR support on the Steam Deck OLED. In addition to HDR being re-enabled, there are now options to switch between automatic mode, which only enables HDR when HDR content is detected, and an always-on mode that allows for higher brightness when viewing SDR content.HDR is also now enabled with Remote Play on Windows, in games and on the desktop, via Pipewire on the Linux desktop, when streaming from macOS, and when streaming to an Android device using Steam Link when running Android 15 or newer.