Point of my comparison is that even if photo app as good as Google Photos can be recreated with barely any money in the pocket, companies that have pockets full of money could do much more than a simple photo app. Epic has cash to fund a fairly competitive Steam clone. Microsoft is in exact situation and probably has even more money than Epic. Both of them have teams that could do this in a span of a year or so. They are just choosing not to.

Steam is more then just an app. It’s entire business empire with years and years of connections, agreements and contracts, secondary services, infrastructure and more.

Yeah. So is MS and Epic. And they both are older than Valve.