Before you begin, ensure you have:
Critical Warning: You cannot use GApps packages intended for Android 13 (LineageOS 20) or Android 14 (LineageOS 21) on LineageOS 19.1. Doing so will result in a bootloop or installation failures. You must specifically download packages targeted for Android 12 or 12L. Gapps For Lineage Os 19.1
There are several major distributors of GApps. For LineageOS 19.1, the following are the most stable and widely recommended: Before you begin, ensure you have: Critical Warning:
Gapps is a blanket term for the collection of Google applications and services that normally come pre-installed on certified Android devices. This includes: There are several major distributors of GApps
For Lineage OS 19.1, because it is a "vanilla" AOSP (Android Open Source Project) build, you must flash a Gapps package immediately after flashing the ROM (or separately via recovery) to enjoy these features.