The Mate 20 Lite may share its name with two of Huawei's former flagships, but the mid-range handset has not been afforded the same software support as the Mate 20 and Mate 20 Pro. While the latter two received EMUI 10 globally in November, the Mate 20 Lite has spent the last two months on EMUI 9.1. Owners of the Mate 20 Lite may have now started seeing notifications to upgrade to EMUI 10 and Android 10, though.
https://www.notebookcheck.net/Android-10-goes-global-for-the-Mate-20-Lite-as-Huawei-releases-EMUI-10-worldwide.452536.0.html
It has come to my attention that, Huawei nova series smartphones are not receiving the EMUI 10 updates. Nova series like, nova3 and nova3i handsets 2018 what is the issue like nova3i runs on emui 9.1 but it's not yet on the list of phones receiving the upgrades?