Here's the difference on desktop (in an incognito Chrome window). UDM14 search on the left ('Web' tab), regular search ('All' tab) on the right. I think you can find the 'web' tab at the top of regular Google searches these days, but it's not the default.
This is great. You can set this up on firefox as default.
Oh yes! I forgot to mention that you can set it as default. 😅
P.S. You can set this up as the default search engine on Chrome, Firefox, etc. on desktop and mobile so that typing in the search bar automatically uses UDM14, rather than having to go to the website to search.
It's a bit fiddly to set UDM14 as your default search engine on Chrome on mobile – you can't just put the UDM URL in settings, alas. Go to the UDM14 website, search for something (anything) with it, *then* go into the browser settings to set the default engine and it should be listed as an option.