This is basically a request to add https://www.drupal.org/project/admin_menu_source into Backdrop core:

This would be a nice solution for what this person is trying to achieve in https://forum.backdropcms.org/forum/flyout-menu (aside from the vertical placement of the admin bar).
This is one of the things I'm planning to discuss during the Content Author-centric UX improvements in core session in the upcoming Backdrop Live event.
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Start with clean URLs, add Pathauto and Metatag modules, submit your XML sitemap to Google Search Console, and keep your content original and well-structured.
How to Improve SEO Performance in Backdrop CMS
Check out this post re: tempstore: https://forum.backdropcms.org/forum/tempstore-table
Which database tables can I saftely empty before DB backup
Hi. I use the "[node:title] | [site:name]" tokens for the main image of news articles, blog posts, and similar publications. It's a quick and practical automatic ALT.
How to Improve SEO Performance in Backdrop CMS