As far as panoramic stitching and parallax errors, the camera phones have two things in their favor – 1) the small sensor has a greater DOF (not essentially necessary for parallax, but helps with stitching across the board), and 2) the extremely thin camera/lens makes the offset pretty much negligible.
I often shoot outdoor 360-degree panos with a m43 camera and 14mm (28mm equiv.) lens. Using MS ICE, as long as I’m no closer than, say, five feet or so to a subject (e.g. tree), I rarely see parallax errors, even when just using a standard tripod and NO panorama head. However, I can see where a pano head would be necessary for longer focal lengths, or closer subjects. For general outdoor landscape, not so much.
Started out doing photography at the age of 6 using an uncle's old 1940 kodak brownie box camera. At 15 years of age, I decided to buy my very own 1975 Praktica SLR camera. I now shoot with a Nikon D850. I do unpaid TFP and commercial paid work.