Effect that detects white object throughout entire video and blurs it, without manually running tracking mask?
Not really. Color detection, when you’re looking for a white object is really the same thing as what’s known as a “luma key.” So, you can try that, but you’ll quickly see why the VFX industry prefers chroma keys. You could try a machine learning based approach, and both Premiere and Davinci Resolve have ML object removal, but it’s less automatic, and more error prone than you’d expect, and requires certain conditions to be successful at all. Of course, the state of the art is advancing quickly, and this could change in the near future.