Question RE drupal Composer and Drupal Recommended

Problem/Motivation

I have DRUSH apparently locked at 13.0.0.0-beta1.

When I issue the command...

composer validate

I see...

require.chi-teck/drupal-code-generator : exact version constraints (3.5.0) should be avoided if the package follows semantic versioning

A subsequent...

composer depends chi-teck/drupal-code-generator

Reveals...

drupal/recommended-project dev-main     requires chi-teck/drupal-code-generator (3.5.0)
drush/drush                13.0.0-beta1 requires chi-teck/drupal-code-generator (^3 || 4.x-dev)

Does that mean that I am somehow using drupal/recommended-project in the dev flavour instead of the stable release?

Can anyone advise as to how to fix this up so that:

1. I can update DRUSH
2. I am firmly attached to the stable release of drupal/recommended-project if indeed I am not?

Thanks all