I shoot primarily in vertical format on my iPhone using a magnetic mount from Ulanzi on a tripod. I mostly use natural light which is in abundance in Southern California in and around my cabin in the mountains. The wood interior softens the sound reflections, but I still run my audio track through Adobe's Podcast Audio Enhancer.
While I self identify as a minimalist (after decades on the other side), I did just purchase an Elgato Prompter and their Facecam 4K to use for my scripted long-form videos. I'm still waiting for it to arrive, but hope that will prove to be a worthy investment. I'm stingy to the core. LOL!
I also have some LED Key Lights from Elgato that I use if I need to shoot something at night, but for now they are still packed away in my barn. Our 3 room cottage is TINY!