I can’t find any reviews of the chip itself, just announcements. It is too early to say they succeeded. Also intel did make a 5G modem for phones. It just was a couple of years behind Qualcomm’s chip. There is a good chance that Huawei’s 5G chip will be the same. If you look at the phone they are going to sell with the new 5G chip, it has a main processor that is performing at the standards of two years ago. The 5G modem could be the same way. Furthermore, Huawei could be breaking patents and be fine as long as the phone isn’t sold outside of China. The main difference is that Apple doesn’t want to put a worse 5G modem in their products and can’t pretend that patents don’t exist.