How to open VPN wifi in Android 12

first, you gonna unlock the bootloader
then, you have to have twrp installed (or boot into it would also do the work
then, you gonna install Magisk-v25.2.zip or SR1-SuperSU.zip (by sideload from computer or directly install from phone would be fine in both way
then install Magisk.apk, from its UI, hit ‘Modules’ tab button, hit ‘Install from storage’ button, install the LSPosed zip file you downloaded. (https://github.com/LSPosed/LSPosed/releases/tag/v1.8.4
reboot, and install a root checker, for example, ‘Permission Ruler’
after you have root permission, you install VPN Hotspot (https://play.google.com/store/apps/details?id=be.mygod.vpnhotspot&hl=en_US&gl=US
set up another VPN app you used before, like v2ray or Clash.
open VPN Hotspot, click Wi-Fi hotspot
done, congratulation! You have settled up a VPN WiFi!

Hi, there!