The Bootstrap on WordPress theme is developed for developers who want to use Bootstrap for there development.
The theme is nothing more than a blank slate, its for you the task tho build your theme.
The only thing includes is everything you need for developing with latest Bootstrap version.
This theme is build with the goal that the WordPress Admin side can be easily adjusted to match you clients branding.
This also means that it removes the default WordPress branding.
A bit af css is added to the admin area, to replace WP logo in the back button with an arrow.
The login page is easily customizable trough the functions.php
The theme includes a scss/css file for the admin page including darkmode support for easy customization.
This theme only includes the bear minimum that is required for a WordPress theme.
The default dashboard widgets are removed. The emoji scripts are removed and the theme also includes a snippet for disabling the new block editor and removing the css that is loaded in the frontend.
The rest is up to you.