Usually, but not always, I hear this from game developers.
To be fair, of course, I'm not doubting that they're correct when the libraries are used in games. The problem is that increasingly graphics libraries get used in security-critical contexts like browsers.
I bet there are a few security vulns lurking in games that involve user-provided data (e.g. maybe you can customize your clan by uploading a logo). The boundary between trusted and untrusted in games with mods is especially porous ( e.g. https://security.gerhardt.link/RCE-in-Factorio/ ).
To be fair, of course, I'm not doubting that they're correct when the libraries are used in games. The problem is that increasingly graphics libraries get used in security-critical contexts like browsers.