The ubo extension does work in orion, but I remember having to go somewhere deep into settings to make it actually be enabled. I don't remember exactly how I did it but eventually after a few restarts of the browser I got it working.

I did compare against other adblock systems on ios and found it to be the best option, as other adblocks either gave broken webpages or just didn't work at all.

Are you sure you're not just using Orion's built-in content blocker? I realized I had the uBO extension installed on iOS but it wasn't doing anything because I also had Orion's ad blocking enabled.

I have tried UBO on Orion on iOS and it does not work. It is definitely installed. It definitely thinks that it's working. But the moment you switch the default Orion blocker off - the ads appear. And uBO just says "Blocked on this page 0", no matter the page. If you actually did manage to get it to work - that would be golden, would really appreciate it if you shared how you made it work.

To be quite frank - I haven't manage to get _any_ of the extensions (that I would like to have) to work in Orion. They all just silently fail in different ways.