This is basically the same as Make the block title required and allow it to be hidden for D8, but applied to both block titles and layout page titles.
D7 (<none> required to hide title):

D8 (checkbox that toggles visibility of title):

GitHub Issue #:
692
Recent comments
For the dev meeting: Progress all over the place. Nine pull requests are currently marked RTBC - time to consider merging? Bug fixes mostly, and not too complex. Issue #6987: There's...
December 18th, 2025 - Weekly Meetings
In a blog post titled "Github Tips and Tricks for Contrib Maintainers", I'd like to see some of the following topics: When is the README sufficient for documentation? When should...
Github Tips and Tricks for Contrib Maintainers
Thanks Alejandro. That was the clues I needed.
Ubercart - Programmatically add product to cart and straight to Checkout