You can find the backend’s URL suffix in the app/etc/env.php file:

The full Magento 2 backend’s base URL is <frontend base URL>/<backend suffix>.
You can find it faster with the command line.
You can find the backend’s URL suffix in the app/etc/env.php file:

The full Magento 2 backend’s base URL is <frontend base URL>/<backend suffix>.
You can find it faster with the command line.
Thanks for the solution.
Another way to check the admin URL is by running this command:
php bin/magento info:adminuri