I know AVX2 will continue to exist in hardware forever for backwards compatibility, by "fully phased out" I mean the eventual point when software no longer has

I know AVX2 will continue to exist in hardware forever for backwards compatibility, by "fully phased out" I mean the eventual point when software no longer has to maintain a dedicated path for hardware which supports AVX2 but doesn't support AVX10, because all relevent hardware supports AVX10.