A sad reality of Free Software is that the most well-funded companies that greatly benefit from the technologies will actually rarely contribute or give back, even when they request changes. For a project like Godot, the vast majority of the funding and contributions ultimately come from indie game developers, Free Software organizations or enthusiasts, and companies built by long time contributors to the project. You can scour big industry events actively trying to get sponsorships. Even if there are companies with really large revenue using Godot that have much to gain from this, it just doesn't work like that. And Godot is lucky to be really up there among the Free Software projects that receive some funding or sponsored developer time from multinationals - generally to better support their own platforms or products, e.g. integrating C# for Microsoft, improving mobile rendering performance for Google...