Cyclists generally use one lane of a two lane road. Pedestrians tend to use the full width of a shared use pavement. Cars can pass bikes as soon as there is not a car coming the other way, cyclists can’t pass pedestrians until they move over to take up just one half of the space. That’s the difference here. Note these are generalisations, but this whole thread is based on them!
Cyclists ride on the left, cars drive on the left, everyone overtakes on the right, pedestrians walk on the right so as to walk towards traffic. It has a known thing on the roads, so ‘conflict’ between users has a set of rules. On shared use paths my experience is cyclists will still ride on the left, but those on foot don’t walk on the right ‘towards traffic’ but everyone would rub along better if they did. The pedestrians could see the cyclist coming so no surprises, and the cyclist can pass by moving to their right (to the ‘wrong’ side of the path) to pass.
also FWIW, there are twats using all modes of transport, and there are loads of normal, law abiding citizens using all modes of transport. It gets a bit tiring that if you are a pedestrian all cyclists are aresholes (they aren’t), if you are a cyclist all drivers are arseholes (they also aren’t) and maybe we could all just appreciate the challenges of the other modes of transport and try to rub along. As someone who lives on a big network of shared paths, and uses them both with a dog and on a bike, awareness of your surroundings is key, so not on phones, not on AirPods, but also means I’ve never had someone cut me up or shout at my dog when they overtake me on their bikes because I more often than not know they are coming, and have my dog on a short lead. When I’m on my bike I always appreciate and say thanks to pedestrians who behave similarly, with a bit of awareness of their surroundings.