View Installed Apps on particular Device on play.google.com
Luckily, this is possible again:


while logged in with your Google account, visit Playstore's your apps page (you can also reach this from your Google Dashboard, scrolling to Play Store, and hit the "view apps" link)
at the top of the page, you should see a "link" labeled "all apps". That's a drop-down, push it
now select the device you want to see the apps for.



Screenshot of the described drop-down (click image for larger variant)