There was a rumor going all over that Huawei’s future Mate 40-series will feature the 1st under-display screen front-facing camera on the market developed by Visionox but that has now been refuted by common tipster Digital Chat Station.

He states that he has seen in person and has held an underdeveloped sample of the Mate 40. And unfortunately, there’s no screen selfie digital camera as we hoped. He failed to give any particulars on irrespective of whether the cellular phone will use a common notch or a punch-hole digicam layout rather.
It was always a slim opportunity to observe how Visionox’s remedy arrived a little bit too late in the Mate 40 family’s enhancement process.
Source (in Chinese)