No I just think you’re exaggerating the problem and had a bad take on it. In my opinion Steam is harder to install on Windows than Heroic Launcher is to install on SteamOS.
Messing with Proton isn’t required and I am sure most games will figure out how to add a shortcut to Steam.
You literally said
installing HGL or any other launcher is going to be both inconvenient and require a level of investigation that most people don’t care to bother with when they can just hit “buy” on the store.
This reads to me that think Valve are going to make installing shit harder. I’m arguing that at the moment it’s easy to do and Linux is an open platform. Nothing like a walled garden