One announcement about their new Valve Steam OS, which has been created to provide a royalty-free Linux operating system explains that it can be used by hardware vendors for console systems.

Hackaday and Ars Technica note Inkbox Software has released a graphical operating system, NESOS, for Nintendo's console.

Steam Deck: How SteamOS Bridges the Gap Between Console and PC Valve talks about developing a streamlined but flexible operating system for the Steam Deck.

The PS5 operating system still remains a mystery, but a new patent has potentially shed light on what we can expect from the new console.