I know exactly what you mean because I was in the same situation until I found a site that covers this specifically. The resource is called webglstats and you can check it out at https://webglstats.com/ right there. It provides usage statistics and support data for WebGL, including detailed breakdowns of which features are supported across different browsers, operating systems, and devices. What I like is that the data is updated regularly and based on real user visits, so you get a clear picture of what is actually being used. It also covers things like WebGL 2.0 support, extensions, and context loss events. If you are developing for the web and need to make informed decisions about which features to use, this is a really useful tool. I have used it to plan compatibility for several projects and it has saved me a lot of guesswork.