How to enable WebGL on QWebEngineView?

Question

Python

I'm trying to enable it with the following code:

self.browser = QWebEngineView()
self.browser.settings().setAttribute(QWebEngineSettings.WebGLEnabled, True)
print(self.browser.settings().testAttribute(QWebEngineSettings.WebGLEnabled))
self.browser.setUrl(QUrl("https://webglreport.com/?v=1"))

Although True is displayed, the flag that WebGl is Enabled, but when entering the site https://webglreport.com/?v=1 displays a message

× This browser supports WebGL 1, but it is disabled or unavailable.
Sometimes this is the result of older video drivers being rejected by the browser. Try updating your video drivers if possible.
Also check out Get WebGL, or try installing the latest version of Chrome, or Firefox.

And it passes only 2 parameters - the platform and the user agent. And not as normal - all the rest. Tell me what am I doing wrong? And how right? Thank you!