LineageOS does not have certification (i.e. does not meet Google's quality standards) to install the Google applications. Manufacturers who want to ship with Go

LineageOS does not have certification (i.e. does not meet Google's quality standards) to install the Google applications. Manufacturers who want to ship with Google Apps have to take everything up a notch to get the certification, which is a huge amount of work (on top of everything that LineageOS and the likes are doing).