That’s an outright lie.

For example, this has no “requires internet” disclosure and yet if you try and start it offline for the first time it won’t run and even after that if you have it offline for more than a week or so it stops working (I know because it happened to me on vacations).

Most games integrated with the Steam API require the game to be online and able to reach the Steam servers both for first start and at least once in a while, something that’s not disclosed in the Steam store page for those games.

Further, it doesn’t get more consistent as disclosures on DRM go than GOG’s “None of our games have DRM”, so your “no other store” is also a lie.

If you’re going to fanboy for Steam, at least stick to their true qualities and don’t make shit up.