DBUS_SESSION_BUS_ADDRESS not set when running tomb via .desktop launcher

[AimoE]

I am using tomb in Ubuntu 20.04 (which has Gnome desktop). I have a script which runs fine on bash command line. I also run the same script via a .desktop launcher, which has "Terminal=True" set, because I want to see all the messages that the script emits.

When the script runs all tomb commands with sudo, I get "No $DBUS_SESSION_BUS_ADDRESS found, falling back to curses" for any the tomb commands that refer to a key, and I have to type the passwords for the keys in the terminal window in a clumsy manner.

However, when the script runs all tomb commands without sudo, I get a neat separate pop-up window whenever a password is needed for a tomb key. For the first tomb command, I also get a prompt for sudo password in the terminal window (because my sudoers setting does not apply).

Is this a bug or a feature, and is there something I could do to get DBUS_SESSION_BUS_ADDRESS set for the tomb commands in this setup?

[Narrat]

The env var is tied to a specific user. For example:
DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/1000/bus
So as you invoke tomb with sudo this env isn't available. The reason for this? Depends on your setup and settings? It could be running with a different user, sudo not inheriting env vars. Sadly I'm currently not really sure, but it is more due to a feature and not of a bug in tomb. At least this is my assumption.
There were recently changes in regards of privilege escalation. Maybe there got something included which helps in this case