The Sony A7IV is my camera of choice. It's a versatile tool that meets my creative needs without being a limiting factor. The 33MP sensor is a step down from the 61MP of the A7RIV, but the smaller RAW file sizes are a relief (66MB vs 122MB). It may not be perfect, but it's the most practical for me. So why Sony? The variety of lenses and accessories gives it an edge over competitors. I don't disparage other brands like Canon, Fujifilm, Panasonic, or Nikon; each has its pros and cons, but the best camera is the one that's best for you.
My current lens lineup includes SIGMA Art lenses: the 14-24mm f/2.8, 24-70mm f/2.8, and 85mm f/1.4. They're more budget-friendly compared to Sony's G and G Master series. Personally, I see no need for a Sony lens when alternatives are just as compelling. I did own some G Master lenses in 2021 but sold them with my A7RIV. In short, I had to downsize for peace of mind. So why SIGMA? I enjoy their products. It's as simple as that.
Rounding out the kit are three Polar Pro Quartz Line Circular Polarizer filters (67mm, 77mm and 82mm) and two Polar Pro Variable Neutral Density Peter McKinnon Signature Edition II for 2-5 stops and 6-9 stops (that's really long name). The VNDs are 82mm for the Sigma 24-70 since any video will be capture on that lens.