Yeah, every single release since then has had work done on scaling Postgres up on a single machine. They have been working on eliminating bottlenecks one after

Yeah, every single release since then has had work done on scaling Postgres up on a single machine. They have been working on eliminating bottlenecks one after another to allow it to scale on crazy numbers of cores. I've seen benchmarks on the -hackers mailing list with 88 core Intel servers (4s 22c) in regard to eliminating bottlenecks when you have that many cores. So even if it's not 100% there yet, it will be soon.