The first boot after installing GApps can take significantly longer than usual — sometimes 5‑10 minutes or more. This is normal as the system optimizes the newly installed Google services.

: Use a smaller alternative if available, or look for a "debloated" version of your custom ROM to free up system partition overhead. Google Play Services Keeps Stopping

: Ensure your phone has at least 50% battery life. Step-by-Step Installation Guide

Here’s a detailed technical write-up on installing version 20220215 on an Android device.