drush en [modulename] doesn't display output from modulename_install()

[damienmckenna]

Describe the bug
When hook_install() on a module outputs messages via

To Reproduce
Add a new module that includes hook_install() like this:

function mymodule_install() {
  \Drupal::messenger()->addMessage(t('Hello world'));
}

Enable the module via drush en mymodule.

Expected behavior
Drush would output "Hello world".

Actual behavior
Drush just outputs "Module mymodule has been installed."

Workaround
none.

System Configuration

Q	A
Drush version?	13.6.2.0
Drupal version?	11.2.4-dev
PHP version	8.3.21
OS?	Mac running ddev

Additional information
Add any other context about the problem here.

[damienmckenna]

FYI the message does display when the module is enabled via the admin UI.