Xiaomi has sent out the Android 10 update to quite a number of its phones, but the Redmi Note 7 and Redmi Note 7 Pro remain on Pie. There appears to be light at the end of the tunnel, though, if new information is anything to go by.
https://www.notebookcheck.net/Android-10-update-for-the-Redmi-Note-7-finally-gets-an-ETA.462007.0.html