In this case, yes.

Game keys are digital products.
The problem with amazon fake physical product resellers has nothing to do with their digital services.
Although one may hate amazon from many of the whatever reasons, their digital products are "fine", it seems.

The bot reviews and amazon apparently deleting reviews agaisnt certain products is a real problem though. (See Rossman youtube's videos to know more about it.)
To trust a grey market key reseller more than a well strablished megacorp with many clients and services worldwide, (including their AWS servers that you're using right now even if you hate them) only because "it is a megacorp" is a little bizarre, to be honest with you.

I've now visited several of my favorite topics as a routine and you keep posting the same thing (more or less) in the ones you show up in. I think people have answered you question about keys sellers by now.

If it's not a legitimate site, then there is no guarantee for anything you purchase there. Only legitimate sites can offer you a safe product and usually a 30-day return policy.

Plus, if you're using your credit cards on any non-legitimate sites, then you're risking your own privacy and security. But hey, it's your money and personal info to risk I guess...

Also, from all the posts you've made or replied to, it seems you just want someone to validate your goal of piracy and you won't find that here. Legitimate GOG users (meaning, non-bots) will NOT condone such things and most certainly will NOT provide you with links to such key seller sites. Heck, I don't even know of a single one anyway, since I'm a legit buyer. =P

Also, there is a chance you are risking the closure of your GOG account with all these non-legitimate keys. You may want to read GOG policies and any terms and conditions as well, just to be safe. GOG is usually very tolerant, but why risk losing your legit games right?
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Which library do you mean? I checked both the store pages and when you browse games and for me Fallout 2 is not marked as owned in any of them.

Indeed, i meant that the last Prime game I claimed was Fallout 2, and it is not marked as 'owned' in my GOG library, but the games from this month are*.

* Edit : Not all the games.

Ah I get it now - I am sorry. Yea its great now most games are marked as owned! There are still exceptions though. For example Greedfall - the DLC is marked as owned but the main game for some reason is not(or the gold edition which was given away in first place). Also the Blade of Darkness from the other day is also not marked as owned

No problem. Weird for GreedFall. Indeed Blade of Darkness isn't marked as "Owned" well spotted. Hmm, I got excited too soon...

Does anyone know if Disney•Pixar Cars on Amazon plays properly on newer versions of Windows? I ask because the Steam disclaimer stating, System Requirements: This app only supports older operating systems (Windows Me / 2000 / XP / Vista) and may not run on newer operating systems. I wonder if Amazon solved that.

Just tested it today and played for an hour. Works perfectly fine on Windows 11 24H2. :)

Thank you Hustlefan for the reply with the positive news, God bless you. I should find a way to subscribe again to Amazon Prime.