I'm just back from Cairo, where I heard not a whisper of the implementation of this.
I found this site
https://www.egyptvisa.com, which has the whiff of a third-party facilitator, or even a scam.
Neither the UK Foreign Office nor the Egyptian consulate in London seems aware of the development. Both suggest either a consular issued visa, or one on arrival, as the ways to go.
No mention up-front on the purported official site of costs, but following through a dummy application reveals a fee $58 v $25 for the current VOA.