If you don’t like the bloatware… unlock the bootloader and install a custom rom! Luckily Xiaomi allows you to unlock the bootloader if you have a global variant.

And what about Xenia?

https://support.torproject.org/tor-browser/security/tor-browser-for-android-no-trackers/

The trackers detected are:

• Glean (Mozilla telemetry service)
• Sentry

You can inspect them in App Manager if you have root, and disable the specific activities and providers from the app if you care about this.