Everything except making a store people wanted to use? Ethan Evans, who was previously Vice President of Prime Gaming at Amazon, has a short retrospective of trying to take on Steam.
So many of their most beloved features are crazily dev intensive to maintain, and critically they’re not static. Amazon never really updates their consumer interfaces, steam is constantly adding new features and reworking their old ones across all their UX. Its just not economically feasible to pop in and replace them if you’re a publicly traded company, the shareholders would look at the maintenance costs alone and faint
So many of their most beloved features are crazily dev intensive to maintain, and critically they’re not static. Amazon never really updates their consumer interfaces, steam is constantly adding new features and reworking their old ones across all their UX. Its just not economically feasible to pop in and replace them if you’re a publicly traded company, the shareholders would look at the maintenance costs alone and faint