I said I'd make a resource for everyone yesterday, but it took a little time to get done since things got a little hectic. This is a simple post-processing stack effect for Unity that has not been rigorously tested. It works with the latest PPS version and the latest Unity LTS and I can only ensure compatibility with the built-in render pipeline. That said, it does work, and I'll be using it myself.

https://am-cities.itch.io/bitmaster-dithering-effects

Giving this a little bump for those looking for tools

I just fixed a bug where the scaling factor setting wasn't showing up in one of the image effects. Normally I wouldn't bump for something like this but it was a bit of a problem if you wanted consistent visuals. You can get some neat effects if you set them to different values though.