So this is a thing. Google launched a new database product today at Google I/O. #GoogleAlloyDB is a new managed #PostgreSQL compatible database. Optimized for heavy workloads, it's got some significant improvements across the board, and in particular it handles heavy read workloads without affecting write performance.
The launch blog is here ↓
https://cloud.google.com/blog/products/databases/introducing-alloydb-for-postgresql
And there's a blog post about how the storage layer has been optimized for some of the performance improvements ↓
https://cloud.google.com/blog/products/databases/alloydb-for-postgresql-intelligent-scalable-storage