Do timestamps in the output match the moment when you experienced the
issue? I would expect "-b -1" rather than "-b1", however the latter
still may be valid.
I see no errors in logs.
qBitTorrent may be the culprit, i see this mention of QB, but i don't know if it is connected
Mar 31 16:28:32 deb systemd[1732]: Stopped app-gnome-org.qbittorrent.qBittorrent-2342.scope - Application launched by gnome-session-binary.
Mar 31 16:28:32 deb org.qbittorrent.qBittorrent.desktop[2342]: ICE default IO error handler doing an exit(), pid = 2342, errno = 32
Mar 31 16:28:32 deb org.qbittorrent.qBittorrent.desktop[2342]: failed to unregister service "org.kde.StatusNotifierItem-2342-3"