For me the biggest missing block is the text search API. It's ridiculous that you can't add a basic search input to your Firebase-based website unless you use T

For me the biggest missing block is the text search API. It's ridiculous that you can't add a basic search input to your Firebase-based website unless you use TypeSense, Algolia or some other additional database that you have to manage and keep in sync. Despite all the recent enshitification, I can't think of any alternative solution that would come even close to what Firebase has to offer. Authentication API is especially hard to beat (cheap and very easy to integrate).