It reminds me of Sony QX series. https://en.wikipedia.org/wiki/Sony_ILCE-QX1

Maybe Fennec

https://f-droid.org/packages/org.mozilla.fennec_fdroid/

Unfortunately yes.

HarmonyOS NEXT AFAIK does not run on the Linux kernel.

https://en.wikipedia.org/wiki/HarmonyOS_kernel

Technically it does not run android.

It doesn’t seem to be a full system update but a SmartThings Framework update that caused the issue.

The 5 year battery warranty is good to have. Hopefully it forces other OEMs to do the same.

Yes

For the case for my poco x3 I only debloated once when I got my phone and it remain bloatware free ever since.

Debloat with adb or shizuku?

Nothing to see here.