Roadmap for improving Layout Builder

Layout Builder is in core as a stable module, but is not installed as a part of the Standard profile.
Currently, it only provides layout capabilities for entities (usually the main content of a given page).
It does not allow site builders to layout the header, footer, or sidebars of their pages.

Must have

Finalize the header/footer/sidebars functionality

✨ Discuss using Layout Builder to control full site layout and replace Block UI Needs work
✨ Add visibility control conditions to blocks within Layout Builder Needs work

Remove dependencies on other optional modules

📌 Remove block.module dependency from Layout Builder Needs work
#2935999: Remove Layout Builder's hard dependency on Field UI →

Number of blocks are overwhelming and can break sites

🐛 Reduce the number of field blocks created for entities (possibly to zero) Fixed
📌 The list of available blocks in Layout Builder is overwhelming to users Active

Should have

🐛 layout_builder__layout_section column hitting database limit Needs work

Could have

✨ Make it possible to add relationships to layout builder Needs work
✨ [PP-1] Reorder Layout Builder sections Postponed
✨ Consider supporting Layout Builder Overrides for other view modes Needs work
📌 [PP-1] Expose Layout Builder data to REST and JSON:API Postponed
📌 Re-evaluate whether Contextual Links are the best interaction for configuring/moving/deleting blocks in Layout Builder Active