Snapdragon 888 probably the first one have SVE, Snapdragon 7/8 gen all have Qualcomm® Type-1 Hypervisor, so what's your test, abel to run any linux on it?
Qualcomm disables SVE (masked at the hypervisor level) on all their silicon. If you want SVE on a phone roday, your options are Tensor G3, Exynos 2200/2400 or MediaTek phones with ARMv9 CPUs.
Or if you have hypervisor execution level code exec (including an unfused phone), you can patch up that limitation.