It's not only on City+ and free to watch as long as you have an internet connection.
With it being on UEFA.tv you just need an account and you'll be able to watch for free on firestick, all these below are showing it in the UK so it should be easy to watch...
Alternatively you can buy...
Shocked that this thread doesn’t already exist. For those out of the loop, he replaced koulibaly at napoli. Hes on the track to become a top-tier defender. I’d actually prefer him over Gvardiol to replace Laporte...