I have the 8/256 TE Rom works fine.Currently using 9.8.1(Android 9) as some features are not working with higher version of rom.
Like my banking app for NFC payments is not supported on Android 10 yet.
I ran the 9.8.1 version too, until yesterday I tried the new 9.9.26 and all of my problems seem to be solved now. Location sharing is working and roaming stays on even after a reboot. So I will continue with Android 10 and MIUI 11 now...