Just "Software" or maybe "Software-based" might be better? Or maybe call it "Middleware" or "DRM Middleware" as that's what they basically are? But yeah, that whole section could use a rewrite with Steam's various types of DRM added to it, not to mention Uplay and Origin's DRMs as well.
Part of the problem is that even PCGW suffers from not having a clear view of what's DRM and what's not, and what "type of DRM" to use and when. Take Paradox's Launcher for example; this launcher can be used to download DRM-free copies of the games you own. But as usual the downloads themselves are "locked" behind an account. So is this DRM-free or is it Account-based? Tyranny's article lists is as DRM-free, while Stellaris' article lists it as Account-based.
And if it is "Account-based", why do PCGW make an exception and call GOG DRM-free when it, too, locks the downloads behind an account with the license tied to it? Is it because it is a website? Because that's a ridiculous reason as a web browser is just a client just like Paradox's Launcher is a client.
PCGW could really use a strict definition that *all* contributors and articles go by, and from what perspective to look at things. Should contributors evaluate the DRM aspect from what a player can do with the game when they have obtained the data for it, or *how* they access said data? The former would result in GOG titles, Paradox Launcher, a ton of Steam games and a lot of other stuff be labeled as "DRM-free" even if they required an account to download the data the first time. The latter would result in practically all services (including GOG) be labeled "Account-based".
The current situation is basically a mishmash of different perspectives and definitions. It isn't helping that GOG automatically results in a "DRM-free" tag in the Availability table, while Steam/Origin/Uplay results in a "DRM" tag, despite the fact that all of them are technically account-based at the platform level and can differ on the game level with some being DRM protected and other DRM-free.