I flashed Pixel Experience 12 today on my Redmi Note 9s. And it feels like brand new phone! It's faster and it has better UI than MIUI. Also I got Magisk module
How to Root Redmi Note 9S with Magisk [Easy Method]
Redmi Note 9S 日本版をMagiskでroot化する | パウエルのオタク部屋
How to Root REDMI Note 9s device?, How To - HardReset.info
How To Flash Magisk v23 & Root Redmi Note 9S/9 Pro India (2021) | #root - YouTube
Redmi Note 9S 日本版をMagiskでroot化する | パウエルのオタク部屋
Rooting Guide] How To Root Redmi Note 9 Pro/ 9s With Magisk Root