Today VATSIM Germany held an online event about CPDLC usage.
So I jumped in with a short flight from Innsbruck to Frankfurt, with Munich Radar and Langen Radar on CPDLC.
Within the sort video you get see a transmission with ProSimUtils (PSU) in combination with the Hoppie ACARS network.
Here you can follow the current live ACARS communication from every current logged on pilot and ATC.
And a short video after the landing in Frankfurt.