Yes, you can, although you must first of all do a full backup of important stuff from your phone (pictures, documents, etc.) and then to load EU ROM from TWRP and to do a full format of data. EU ROM is very stable branch, I was using weekly on my RN7 and now I am using stable variant on my Poco F2 Pro, and up to this latest release I was very pleased. Now, the main thing that is bothering me is the bottom menu (home, back, recent apps buttons) since it can only be hidden with official launchers like MIUI and Poco launcher. Other than that, there are really small interface bugs like a white letters on some white background (I'm using dark theme but nevertheless...) but all in all it is a good ROM, thanks to developers.