I've been doing that for a couple of years now, although I've started doing it because I hate translations and English is both Windows' and Android's original language.
There's some pretty pathetic translations in Android TBH. I remember the translators confused the word "Home" with "Home screen" in the Phone app... *facepalm*
TBH I use my phone in Spanish, my iMac, MBP, XBOX One, Switch and Wii U in English, my work PC, 3DS and DS in German and I live in Germany, and I really don't know what language I speak anymore. What I'm sure about is that my German still sucks.