Google SWE-SRE interview

I have a phone screen scheduled for Google's SWE-SRE interview. HR asked me to pick a location between Dublin and Zurich. I'm interested in moving to Europe. I have the following questions: 1. Are the interviews equally tough at both locations? I would be leaning towards Zurich, but in the past I've heard that Zurich has a lot of topcoders and the interviews are tougher as compared to other locations. How far is this true ? 2. With two weeks left for the phone screen, what's the best way to prepare ? I was thinking I would target Leetcode mediums alone, around 4 questions a day and thus get 70-75 questions by the interview day. Would you suggest doing Leetcode Hard questions as well ? On an unrelated note, I've also seen a couple of openings in Google, Stockholm. Most of the engineers there seem to be natives of Sweden so I was thinking if it was easier (relatively) to interview there ? Any other tips would be super helpful :) Yoe: 5 Tc: 170k