What problem does this address?

If I am not mistaken, it is rather tedious to access the front-end of the website after editing it in the site editor. When a page/post is edited and saved, a view page/post appears in the left bottom corner. This is not the case in the site editor. One has to open the left top menu (WordPress logo), navigate back and navigate via the dashboard to view the website’s front-end. This makes 4 clicks.

What is your proposed solution?

Maybe this will be addressed in the site preview (#29398). However, it would be nice to have direct access to the front-end in one click in the meantime.
In the left top menu (toggled by the WordPress logo),

• the site title could be a link to the front-end, or
• there could be a link to the front-end, like ‘Visit site’ (see screenshot for raw idea), like in the dashboard top toolbar.