I can't transform data and find my model properties and I can't change the model style in Power BI

But are you sure the browser is using your RTX? Like I said, browsers default to integrated graphics. There is a way to make sure. Go to the browser you usually use and:

  • On chromium based browsers: got to chrome://gpu/ and press “Download Report To File” and attach the file here
  • On firefox go to about:support and use 'Copy Text to Clipboard" and put it in a file here

Yes, the artifacts are part of the shadows and they care be avoided by turning the shadows off

Cheers