ZTE has released the latest version of its Android skin, MyOS, for its flagship Axon 30 smartphone series. It is rated for over 200 UX tweaks and memory expansion features, and also upgrades the series' Pro variant's display refresh rate to 144Hz: the same as that of the top-end Ultra version.
https://www.notebookcheck.net/ZTE-s-latest-Android-update-unlocks-144Hz-on-the-Axon-30-Pro.555384.0.html