Hi AlexNino ,
Power BI is experiencing a problem with starting WebView2 due to code-integrity issues. This is normally due to anti-virus or some other software on the device interfering with Webview2.
To verify this problem, add WEBVIEW2_ADDITIONAL_BROWSER_ARGUMENTS to the User environment variables and set the value to "--disable-features=RendererCodeIntegrity" and try running desktop. If it works, then you have a code injection problem. Delete the Environment Variable you have set above and disable any software that might be interfering or provide an exemption for the WebView2 process.
Also ，you may contact engineer in this original thread
Power BI Desktop not starting with WebView2 due to... - Microsoft Power BI Community
Best Regards,
Community Support Team _ Caitlyn