Summary
- Qi2-certified phones all have magnets; no need to worry anymore about false rumors.
- Neodymium magnets for Qi2 charging are small, taking up little space compared to induction coils.
- Pressure applied to Android manufacturers can encourage magnetic compatibility with existing and future accessories.
The OnePlus 13 does not, Oppo only have magnetic cases that support their proprietary wireless charging.
That article is from December 4. The only review with some info I could find by notebookcheck written on 19 December claims the oneplus 13 supports both Magsafe and 50w wireless oppo mag.
https://www.notebookcheck.net/OnePlus-13-Smartphone-Review-Let-the-battery-revolution-begin.932327.0.html