MySQL is a bit simpler even though pgadmin is a wonderful tool for learning postgres advantages. For me the difference became clear when needing to plot locations on a globe. PostGIS is super helpful
MySQL has way better UX for command line users. Postgres can't get away from legacy Ingres design, with a postgres user and a horrible command line client. Also, database/schema/tables hierarchy is a penalty over database/tables in MySQL.
I fail to see how Postgres' hierarchy is any worse than MySQL. You have one more layer of hierarchy which you do not need to consume, with the added feature of atomic renaming any of the layers.
If I'd compare this to MySQL, where you must move tables one-by-one to another schema (nay database) with the new name to 'rename' your database [0], then I'm very happy with postgres' hierarchy structure.
psql is easily one of my favorite tools. What makes the CLI "horrible" in your mind?
Also, database/schema/tables is great when doing things like multi-tenancy where you split customers by schema (which also makes horizontal scaling super easy if needed).