The Oneplus 12 doesn't have wireless backcharging.
Based on current information and specifications, the OnePlus 12 has not officially confirmed or announced support for wireless backcharging.
Wireless backcharging means that the mobile phone can be used as a charger to charge other devices that support wireless charging through wireless means.
However, this feature is not mentioned in the OnePlus 12's official information. Although the OnePlus 12 does not have wireless backcharging, it may have other charging technologies and features, such as fast wired charging or wireless charging.
If you have other questions about the charging function of the OnePlus 12, you can consult the detailed specifications published by the official or consult OnePlus customer service.