A dedicated installer is much easier to bring around.
For one game, maybe. For a bunch of games an automated backup that collects the entire library and save games is much more practical. There are several easy to use solutions, not to mention scripting if you want really fine grained control.
Why would that be relevant on Linux? WINE/Proton virtual environments are portable.
File compression, for starters. A dedicated installer is much easier to bring around.
Now you have a very portable, highly compressed file that is easy to move around.
You can compress folders and entire file systems.
For one game, maybe. For a bunch of games an automated backup that collects the entire library and save games is much more practical. There are several easy to use solutions, not to mention scripting if you want really fine grained control.