Hi guys,
My bro has unrooted Redmi Note 4 Snapdragon with MIUI 8 installed.
I have the same phone, just Xiaomi.eu MIUI 9 rom (from this site) installed.
I noticed, that MIUI 8 has better camera.
Front camera on MIUI 8 has not that much noise, as the camera on my phone running MIUI 9 off this...