looks like you understand now how it works.
Aosp Recovery you mean the PE recovery ? Because PE recovery doens't let me sideload latest magisk.
If AOSP recovery is another recovery could you point me to a link for Mi 8 Because i only found one for mi9.
Latest unofficial twrp from your topic and latest orangefox are just stuck in logo screen after loading one time PE 13 Plus.
Seems that I I the zip I had download was the source code .I succesfully flashed the renamed apk file.