LineageOS (Android build without Google Play) is generally <500MiB. Google apps usually had on something like 500MiB-1.5GiB depending on what you install. Usual

LineageOS (Android build without Google Play) is generally <500MiB. Google apps usually had on something like 500MiB-1.5GiB depending on what you install. Usually OEM devices have at least that much plus whatever their own stuff is piled on