1. 13th Age
2. Castles & Crusades
3. Fudge
4. Pathfinder
Note that some of these (e.g. Pathfinder) make use of the D&D base rules and setting (System Reference Document, SRD) covered by the OGL. However, not all the games released under the OGL are tied to elements of the SRD.
The issue with the revocation of the OGL 1.0a license is that it affects all of those games.
Then there are all the publishers (Critical Role, MCDM, etc.) creating settings and campaigns for D&D and related systems under the OGL.
The OGL 1.1 license affects video (like Critical Role's Legends of Vox Machina) and other content. It affects people using Patreon for revenue, and possibly (through mentioning pantomime) things like cosplay on TikTok and Patreon.
The full implications are not fully known, and a lot of this would likely need challenging in court. It also depends on how much WotC/Hasbro are willing to challenge/go after.