

How many contributions to RADV, ACO, Proton?
Edit:
https://www.webpronews.com/radvs-rise-how-valve-and-amd-are-reshaping-linux-graphics-in-late-2025/
https://www.phoronix.com/news/ACO-Scheduler-Heuristics
https://www.phoronix.com/news/Steam-Play-Proton-10.0-4
https://www.phoronix.com/news/Valve-Upstream-Everything-OSS
https://www.phoronix.com/news/Valve-Arch-Linux-Collaboration
https://www.phoronix.com/news/Valve-Old-AMD-Linux-Love-Song
Edit2:
These are the Vulkan specifications: https://registry.khronos.org/vulkan/specs/latest/html/vkspec.html
Search “valve” on this page and count the number of results, then search “epic” and compare.

As a consumer, Valve gives me greater value than Epic. Its just simple as that.