no issues with my dad's china rom redmi note 13 pro... 5G SIMBAMy 2024 china rom xiaomi phone mobile network settings no more 5g toggle, always search for 5g. Only has 5g battery saver in battery settings, to reduce power consumption in certain scenarios. To disable 5g needs to enter hidden network settings. However will reboot phone will enable 5g again.
Not sure how is it for xiaomi global rom phones.