Question about Focusrite Scarlett solo 3rd gene

Greetings. My head is throbbing because I've been trying to sort something out for days: I have a Sony microphone, the appropriate cables for it and would like to improve the quality of the mic, i.e. optimise or eliminate hum, volume etc. for Zoom and any Audacity recordings. I would like to connect the device in such a way that I no longer need the webcam mic, but the microphone, so that the people at the other end can hear me more clearly. From time to time I make explainer videos and I would like to eliminate this noise, which I hope to do with the device. However, an additional cable is needed from the Focusrite to the PC, but which one? I find umpteen videos but these questions are just not answered.... Can anyone give me any last hints on how to optimise the mic sound?