As long as the game on steam isn’t using a DRM like Denuvo, Enigma, etc then I can backup and play them even without steam.

It’s just that if the game uses Steam DRM then I’d have to use a steam emulator like Goldberg/gbe_fork to play the game. Sometimes you’d also have to remove SteamStub DRM from the game exe files using Steamless.

GOG is easier since you don’t need to mess with steam emulators and such. You also won’t run into the issue of having to manually create windows registry entries that some old games need. GOG installers will create those windows registry entries for you.

There’s also a new activation method in MAS (Microsoft Activation Scripts) that enables the commercial ESU with 3 more years of updates. The regular consumer ESU just gets you 1 more year of security updates.

Here’s another tool to import music metadata to musicbrainz.

https://harmony.pulsewidth.org.uk/

The source code is even hosted on GitHub which is owned by Microsoft.