Just having a copy of a Game doesn’t help at all with preservation when the games have DRM. Preservation is more then just safe storage, preservation also means to ensure that the content can be used by future generations. This is in general not really an issue with physical media like sculptures, books or paintings. But with digital media this often means that the data has to be copied to other media, convert the data to other formats, or write/use emulators or even rebuild the engine of the game to ensure that a piece of software written now can still be used by whatever hardware/software architecture is in use 20, 50 or 100 years from now. And such preservation has to start when the data is fresh and new, not in 50 or 100 years.
When I got into the company I was allowed to use Linux. But a few years ago the company was bought and merged with a much bigger company and the new IT policy made Windows mandatory.