A reusable set of Lightning Web Components that can be placed on any standard or custom object Record Page to enable a 3 column layout consisting of:
- Record details
- Related records
- Details of a selected related record
See blog here for more information.
Note: to see the code in action, you can deploy the source in this repository to a scratch org, then use App Builder in your org to launch the "LWC 3 Column Record Page App" to try it out.