If you have downloaded open-gapps-arm-7.1-pico-20220215.zip , the installation process typically follows these steps:
Security, privacy, and maintenance notes (practical) open-gapps-arm-7.1-pico-20220215
: This refers to the CPU Architecture . ARM is the standard for older 32-bit mobile processors. Most modern phones use ARM64, but legacy devices (like the Nexus 6 or older tablets) require the 32-bit ARM variant. If you have downloaded open-gapps-arm-7