I think people here are failing to take into account the distinction between mobile and desktop. Desktop usually is about half a year behind mobile.
I wouldn't say typically. In the old Intel days desktop typically was first and mobile second. Even with a concurrent launch desktop models were available before mobile. The mobile first strategy started with the process struggle. If they expect to be ready with Sapphire Rapids next year you would expect they can be ready for smaller desktop parts as well. Fab 42 is fully operational now, they can ramp their 10nm volume up in the coming months.
As for the Alder Lake generation desktop is cleary first and mobile second. All the leaks, , driver and software work on windows/github and Intels own technical library points to desktop first. They have fully enabled 8+8+1 ADL-S ES parts in the lab. A few days ago the have added Alder Lake-S for the Linux version of Media SDK and nothing about ADL-P, just one example of many.
MFX_PLATFORM_TIGERLAKE = 40,
MFX_PLATFORM_ROCKETLAKE = 42,
MFX_PLATFORM_ALDERLAKE_S = 43,
{ 0x4600, MFX_HW_ADL_S, MFX_GT1 },//ADL-S
{ 0x4680, MFX_HW_ADL_S, MFX_GT1 },//ADL-S
{ 0x4681, MFX_HW_ADL_S, MFX_GT1 },//ADL-S
{ 0x4683, MFX_HW_ADL_S, MFX_GT1 },//ADL-S
{ 0x4690, MFX_HW_ADL_S, MFX_GT1 },//ADL-S
{ 0x4691, MFX_HW_ADL_S, MFX_GT1 },//ADL-S
{ 0x4693, MFX_HW_ADL_S, MFX_GT1 },//ADL-S
{ 0x4698, MFX_HW_ADL_S, MFX_GT1 },//ADL-S
{ 0x4699, MFX_HW_ADL_S, MFX_GT1 },//ADL-S