Don’t bother, you’ll never connect to more than 4G
I got an eSIM for my trip to the UK and I had to contact customer service bc they never sent me the QR code. Once I contacted them, they sent it very quickly which was nice. The network connection in the UK is garbage though. Even in central London, you’re lucky to get 4G or 3G. I never got a 5G connection so it was pretty useless.