[System Version]: deepin V23 [Privius conditions]: Deepin 23 and Google Chrome installed with Flatpak [Reproducibility steps]: Open a web page and install it as an application (Menu → Send, save and share → Install page as application), this creates a shortcut in the application menu and opens the page in a separate window. [Expected results]: The dock should show an icon for each installed page opened, as Deepin 20 dock did and Plank dock does. [Current results]: All open webapps are grouped in the Google Chrome icon. I also tried with Google Chrome installed with .deb and it also groups the icons wrong in the dock.