Valve is also fairly bad at maintaining focus on smaller projects. High-profile green-field projects like Steam Deck are fine, but lower priority tasks, particularly maintenance work, suffer. (For example, most of Valve's first-party games - including major titles like Half-Life and Portal - have been unplayable on macOS for nearly five years because there's no 64-bit build.)
I’m on not saying you’re wrong, but old games don’t really count as evidence of lack of maintenance. Games generally don’t receive maintenance unless there’s an ongoing revenue model, which there isn’t for Half-Life and Portal.
Valve did a big marketing push last November for the 25th anniversary of Half-Life, which included a major update for the Windows version. Meanwhile, the Mac version won't run.
