Its just wordpress. Nothing more, nothing less.
You can do it professional or experimentally.
Theming for Wordpress
It's ok to use a readymade theme, but ...
Website: Neurologie am Tauentzien
a website for a medical doctor
My custom wordpress sites are secure, reliable, maintainable and come with good performance in front- and backend.
Based on a proven workflow and a tested set of plugins you will get a system tailored to your needs.
a website for a german consulting company
Website for a congress
A static website which queries Wordpress-Rest-API for certain parts.
a wordpress site of a skateboard agency.