Yes, although a lot of the most advanced PostgreSQL features that would bear comparison in this discussion are relatively recent. PostgreSQL didn't have them in the 2000s, either, and where it did, the ergonomics were much worse than they are today.
I use Patroni (https://github.com/patroni/patroni) (no affiliation to me) which is a really nice and reliable PostgreSQL distribution that provides automatic failover and not just active-standby nodes with manual failover.
As I understand it, you would have to script a separate watchdog process for the basic PostgreSQL, to get high availability.