Can't run GUI apps from terminal with sudo on hyprland session

[Gigas002]

E.g. when trying to run meld:

╰─ sudo meld
Authorization required, but no authorization protocol specified

Authorization required, but no authorization protocol specified

Traceback (most recent call last):
  File "/usr/bin/meld", line 462, in <module>
    sys.exit(main())
             ^^^^^^
  File "/usr/bin/meld", line 457, in main
    setup_settings()
  File "/usr/bin/meld", line 316, in setup_settings
    meld.settings.create_settings()
  File "/usr/lib/python3.12/site-packages/meld/settings.py", line 121, in create_settings
    _meldsettings = MeldSettings()
                    ^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/site-packages/meld/settings.py", line 39, in __init__
    self.on_setting_changed(settings, 'prefer-dark-theme')
  File "/usr/lib/python3.12/site-packages/meld/settings.py", line 56, in on_setting_changed
    self.style_scheme = self._style_scheme_from_gsettings()
                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/site-packages/meld/settings.py", line 64, in _style_scheme_from_gsettings
    set_base_style_scheme(scheme, prefer_dark)
  File "/usr/lib/python3.12/site-packages/meld/style.py", line 44, in set_base_style_scheme
    gtk_settings.props.gtk_application_prefer_dark_theme = prefer_dark
    ^^^^^^^^^^^^^^^^^^
AttributeError: 'NoneType' object has no attribute 'props'

Everything's good on KDE session. At first I thought it's a problem with python or gtk apps, but it seems any apps with GUI can't be run and result in this error

[Gigas002]

Ah, okay, that's not a hyprland issue, more like a Wayland issue. Runs fine with sudo -E meld