WebGL-supported sites, such as https://vrseat.vercel.app/, may not work when hardware acceleration is enabled in Ulaa. To resolve this:
1. Navigate to the Hamburger icon in the top-right corner of Ulaa > Preferences > Browser Settings, and disable the Use graphics acceleration when available option. Then, reload the page and check if it works.
2. If the issue persists, your extensions might be causing the problem. Disable them and perform a hard reload of the site by pressing Ctrl + Shift + R (or Command + Shift + R on Mac). Check if this resolves the issue.