Have always personally seen Gherkin being used with Cucumber, as I believe that they’re two parts of the same whole, but I’m happy to be corrected if wrong :).

My understanding is that Gherkin is the syntax used to write the scenarios / acceptance criteria, whilst Cucumber is the tool that interprets said scenarios and executes them as automated tests.

Welcome to the UK! Not sure on your final destination, but I’m based in South West England. Please feel free to reach out if you need any help or guidance, especially if you’re heading down this way 🙂.