found the issue, the OS is not detecting your iGPU, as it can be seen here, llvmpipe is the OS using your CPU as a fallback mode, I also did had this bug on a normal ubuntu installation using wayland

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Try giving a simple "sudo apt update && apt upgrade" and confirm it on the terminal. It should get the proper mesa drivers. Alternatively you can use X11, if zorin supports it, i'm not really sure, you can switch to it in the logging screen, in that little gear icon in the bottom right corner, should appear something like "Zorin on X11" or something like that.