flatpak installation process

flatpak.txt

$ flatpak install com.obsproject.Studio.flatpakref 

Note that the directories 

'/var/lib/flatpak/exports/share'
'/home/brb/.local/share/flatpak/exports/share'

are not in the search path set by the XDG_DATA_DIRS environment variable, so
applications installed by Flatpak may not appear on your desktop until the
session is restarted.

The remote 'flathub', referred to by 'com.obsproject.Studio' at location https://dl.flathub.org/repo/ contains additional applications.
Should the remote be kept for future installations? [Y/n]: 
Required runtime for com.obsproject.Studio/x86_64/stable (runtime/org.kde.Platform/x86_64/6.4) found in remote flathub
Do you want to install it? [Y/n]: 
Info: org.kde.Platform//6.4 is end-of-life, with reason:
   We strongly recommend moving to the latest stable version of the Plaform and SDK

com.obsproject.Studio permissions:
    ipc                     network                      pulseaudio            wayland
        ID                                                          Branch              Op         Remote         Download
 1. [✓] com.obsproject.Studio.Locale                                stable              i          flathub          5.2 kB / 189.8 kB
 2. [✓] org.freedesktop.Platform.GL.default                         22.08               i          flathub        142.8 MB / 143.1 MB
 3. [✓] org.freedesktop.Platform.GL.default                         22.08-extra         i          flathub         16.3 MB / 143.1 MB
 4. [✓] org.freedesktop.Platform.VAAPI.Intel                        22.08               i          flathub         13.3 MB / 13.4 MB
 5. [✓] org.freedesktop.Platform.openh264                           2.2.0               i          flathub        883.8 kB / 944.3 kB
 6. [✓] org.kde.KStyle.Adwaita                                      6.4                 i          flathub          7.9 MB / 7.9 MB
 7. [✓] org.kde.Platform.Locale                                     6.4                 i          flathub         18.0 kB / 333.4 MB
 8. [✓] org.kde.PlatformTheme.QGnomePlatform                        6.4                 i          flathub          9.6 MB / 9.6 MB
 9. [✓] org.kde.WaylandDecoration.QGnomePlatform-decoration         6.4                 i          flathub          4.9 MB / 10.2 MB
10. [✓] org.kde.Platform                                            6.4                 i          flathub        283.6 MB / 261.4 MB
11. [✓] com.obsproject.Studio                                       stable              i          flathub        202.9 MB / 197.9 MB

Installation complete.

$ flatpak list --app
Name              Application ID              Version       Branch       Installation
OBS Studio        com.obsproject.Studio       29.1.3        stable       system