I am under the presumption that the current state of the Intel Arc Alchemist GPUs will likely remain about the same under Mesa even if support is dropped today by Intel. Am I mistaken in the amount of continued driver effort Intel has been putting in for the Mesa GPU drivers?
Obviously if this is true, one should probably remain wary of upcoming Battlemage GPUs.
What hardware, audio interface, and sound server is in use for your 5.1 Surround setup?