That's a transfer within the platform, very different from the scenarios I described. There is no method supported by GOG or Steam to transfer a game to a competing platform.
You can't open a support case and tell them "sorry I actually wanted this game on GOG, can you transfer it to my account there?". At best you could ask for a refund, obviously if you've played the game enough you wouldn't even be able to ask for that.
But that wouldn't give you a Steam copy, which is the scenario I was describing, along with the inverse mentioned in the original comment. There is no method supported by GOG or Steam to transfer a game to a competing platform.
Also in your case, the receiver would only have that one offline installer, the game wouldn't be in their GOG library, and they wouldn't get future updates.
You can never truly know about almost any online service, you kinda just have to take their word for it, do some research, and pick the option that best matches both the performance and philosophy you're looking for.
Subjectively, it might be better for you. Sure.
It's objectively better, functionally, than Google. Results tend to be better, more accurate, less ad-riddled, and you're able to manually boost or block links to improve your own results.
Same, only reasons I had to move to KDE were, GNOME crashes when both my monitors are off (so, every night when I go to sleep), and tray icons are terrible (as GNOME intentionally doesn't support them), the extensions are all very lacking in features compared to the Windows tray (kde somewhat matches almost everything except being able to reorder the icons).
The ArcMenu extension is by far the start menu I've liked the most out of all options on linux, and it saddens me that there's no KDE plasmoid/widget variant