Can we set maintenance mode while installing site?

As ERPNext is getting bigger and bigger, the install time is getting longer and longer.
So is there any (hidden) option to set maintenance mode to on during finishing new site using `bench new-site site.name --install-app erpnext" ?
Thank you.

Posted a feature-request on GitHub issue

https://github.com/frappe/erpnext/issues/23700