As a Java developer, I strongly recommend using ID instead of <tableName>_id in case of primary key.

When working with @OneToOne, @ManyToOne or @ManyToMany properties, you need to specify the @JoinColumn annotation with the values ​​of the "name" and "referencedColumnName" properties. When they have the same values, it can be very confusing. Although I understand that by default for a primary key, referencedColumnName is not used, but sometimes it is inconvenient and takes a little more time.