It won't happen "soon" if we don't get any logs. Anything (except TWRP logs, they are useless for us) from star, venus, lisa, sunstone or redwood would be appreciated (preferably logcats).
If you face crash (or more like two reboots in a row) while trying to install this update, do this command in ADB:
adb shell pm uninstall com.google.android.captiveportallogin
and try again.
You can try flashing newer modemfirmware from this link (unpack image from zip and flash it in Fastboot mode).
https://xmfirmwareupdater.com/firmware/houji/stable/OS2.0.100.0.VNCMIXM/
Can you send more details? App is crashing? If so, send screenshot from "View summary" or logcat.
https://xiaomi.eu/community/threads/logging-with-adb-logcat.63684/
Just a tip for Global xuanyuan users: after flashing our ROM, you must flash modemfirmware to get signal back.
https://miuipolska.pl/d/xiaomi.eu/modem/xuanyuan_global_A15.zip
Change language to English and clear Recorder app data.
https://xiaomi.eu/community/threads/recorder-app-keeps-crashing-2-0-100-stable-by-xiaomi-eu-on-nuwa.74921/
1. Not all devices officially support these features. If you don't see these features, then very likely fuxi doesn't support them.
2. Ask Xiaomi why they didn't include new Gallery app in Global ROM till now.
If you installed ROM from fastboot, very likely you don't have TWRP. If you don't have TWRP, then OTA won't work. Install TWRP or flash it using fastboot.