> This means that all medium price or high price smartphones that were introduced during the last 4 years have SVE2 support.

Except Qualcomm chipsets, which disable SVE even if all ARM cores used support it. ("Snapdragon 8 Elite Gen 5" supposedly finally supports SVE? but that's like only half a year old)

Qualcomm was odd like that for a long time yeah.

And yes the Gen 5 chips (8, 8 Elite and X2) do implement SVE2 and SME.