I wish they would do some kind of easy shared storage instead, or in addition too. This sounds like an odd solution, however I’ve scaled pgsql since 9 on very, very large machines and doing 1 pgsql cluster per physical socket ended up doing near-linear scaling even on 100+ total core machines with TB+ of memory.
The challenge with this setup is that you need to do 1 writer and multiple reader clusters so you end up doing localhost replication which is super weird. If that requirement was somehow removed that’d be awesome for scaling really huge clusters.