Actually, it isn't MI's logo, it is the logo that MI use. It isn't copyrighted and is free for anyone to use. 🙂
This image, which consists of simple geometric shapes , is not subject to copyright and is therefore in the public domain because it can be easily reproduced, is not owned by anyone, and no one can claim ownership.
https://th.m.wikipedia.org/wiki/ไฟล์:Xiaomi_logo_(2021-).svg
:)