> This isn't any different from the compatibility issues across desktop operating systems. You wouldn't expect a mac desktop app binary to "just work" when double-clicked on a Windows OS.
It actually is a completely different issue. The web is a standard, browsers implement that standard. It isn't perfect but its not the same intention as different OS architecture.
Yes, hence my comment about the argument being made null by the existence of a standard--but that's only in theory. In practice, often because of OS-driven constraints (e.g. the desktop vs Android version of any given browser), different tradeoffs with respect to the quality, breadth, and depth of implementation differ.
The point is this: the existence of a standard doesn't guarantee uniformity in implementations.
A standard _allows_ for uniformity, the only barriers are technical. CDM providers are actively _preventing_ uniformity. There is a massive difference.
It actually is a completely different issue. The web is a standard, browsers implement that standard. It isn't perfect but its not the same intention as different OS architecture.