I don’t have a lot of experience related to this so I’m just noting some things.

Some people in this thread don’t seem to think it’s that hard or overcomplicated.

When reading Designing Data-Intensive Applications my main takeaway was that event sourcing can make it easier to solve a lot of issues like performance, scaling, consistency, auditability, etc.

It would be interesting to look into what a low overhead way of implementing CRUD with event sourcing in Postgres would look like, then decide if it’s too complex.