Do I use pwm hundreds and DC simultaneously?

Sorry for asking a newbie question, I haven't built a PC in like 20 years. Please bear with me. So my MSI Gungnir case can a pwm hub that the fans are connected to. Each fan also has a seprate 3 pin DC cable attached. Do I want to just hook up the Hub only to the mobo? Or do I use both the Hub and 3 pin connectors? Thanks in advance!

Sorry for asking a newbie question, I haven't built a PC in like 20 years. Please bear with me. So my MSI Gungnir case can a pwm hub that the fans are connected to. Each fan also has a seprate 3 pin DC cable attached. Do I want to just hook up the Hub only to the mobo? Or do I use both the Hub and 3 pin connectors? Thanks in advance!