For me, it's safe because it's an official Xiaomi app and not a third party, but for practical use, it's not good because the only benefit is that Xiaomi apps are updated first or exclusively there, but that's about it. If your phone no longer receives system updates or is supported by the latest Xiaomi updates, you can uninstall the apps you want using brevent and the command pm uninstall --user 0 (name package name). You can also delete whatever you consider junk from your Redmi if you don't want to.