The diagonal line in some games -mostly Unity games?- it's an issue ever since I have the GPU, which I purchased day one.Maybe the issues started when I reinstalled W11, but tbh I had reinstalled W11 just a couple of days prior the patch for Martha is Dead was launched and nothing happened, plus I am in the Windows Insiders Build program -Dev Channel- and I had the most recent version of W11 installed in both cases.After that I performed a clean installation of W11 to have a W11 on a NVMe 2TB for gaming, and then I installed W11 again but on a SSD 1TB drive, for general purposes, not just gaming and I perform a dual boot choosing which version of W11 to boot.I installed the most recent driver and the game behaves the same in DX12 mode, it works fine in DX 11 mode -frametime issues are bad, but it looks good and when there aren't frametime issues, it runs smoothly.And I played like that for several days, although I just usually plays games 1 by 1 until completion, so I just did short test sessions.
Thank you for posting on the Intel Arc communities.