[Flatpak] Does not run without sudo -i -- ...

[cyrneko]

Dino will refuse to run as per the latest Flathub release (0.4) without using sudo -i -- flatpak run im.dino.Dino

This happened on Linux Mint 21.3 Cinnamon, with Flatpak version 1.12.7 and bubblewrap 0.6.1

Judging from the logs (see below), Dino times out talking to presumably org.freedesktop.Secrets, as I cannot imagine what else it might be waiting on.

Logs (with G_MESSAGES_DEBUG=all) are as follows:

(process:2): GLib-GIO-DEBUG: 01:56:02.871: Using cross-namespace EXTERNAL authentication (this will deadlock if server is GDBus < 2.73.3)
(process:2): GLib-GIO-DEBUG: 01:56:02.877: _g_io_module_get_default: Found default implementation portal (GNetworkMonitorPortal) for ‘gio-network-monitor’
(process:2): GLib-GIO-DEBUG: 01:56:02.878: Using cross-namespace EXTERNAL authentication (this will deadlock if server is GDBus < 2.73.3)
(process:2): GLib-GIO-DEBUG: 01:56:02.892: _g_io_module_get_default: Found default implementation gvfs (GDaemonVfs) for ‘gio-vfs’
Failed to register: Timeout was reached
(dino:2): libdino-DEBUG: 01:56:28.008: connection_manager.vala:340: NetworkMonitor: Network reported online
(dino:2): libdino-DEBUG: 01:56:28.008: connection_manager.vala:340: NetworkMonitor: Network reported online