https://wccftech.com/intel-arc-alchemist-dg2-gpus-to-feature-support-for-up-to-5-displays-could-be-for-workstation-lineup/

The Intel i915 Linux graphics driver acquired a patch recently that allows for 5th display support for Intel's DG2 GPU series, also known as the ARC Alchemist discrete GPUs. Intel plans to release the new GPUs for laptops and desktop computers. The anticipated date of release should be near Q2 2022.

The Linux i915 driver notes show no explanation of the ARC Alchemist line offering support for up to five displays. The new line has never appeared to support five individual displays in any previous photos. However, with the introduction of USB4, Intel may use USB-C ports for additional display support. The previous photos leaked online only show DisplayPort or HDMI connectivity.