Yes, Nok received the same email at lunchtime yesterday. We're not holding our breath however as the message says that the invitation to use the IDV app will be sent out "...within the next few weeks...". Time seems to be very elastic in the UKVI/UKCVAS universe, notwithstanding the inevitable delays due to lock down.
On another forum it is reported that some ILR applicants who didn't receive the early July UKCVAS email about re-use of previous biometrics and who have subsequently attended biometrics appointments at UKCVAS centres have had ILR approval within days. The discussion on that board is interesting, for example, if you reject the IDV app option in favour of attending a UKCVAS centre biometric appointment, will you get a quicker ILR decision? There do seem to be available UKCVAS biometric appointment slots at various locations but at a price (quelle surprise!).