Form enables add, edit and display items. Customize using modern JavaScript tools and libraries. Works with lists, libraries, Document Sets, and PnP DynamicForm (control). Perfectly suited for enterprise-level custom solutions.
In demo, scaffold the FormCustomizer using Yeoman Generator. Extend/override the BaseFormCustomizer. code and debug your Form Customizer, step through form item editing capabilities, package and deploy using PowerShell.
This PnP Community demo is taken from the Viva Connections & SharePoint Framework Bi-weekly sync call recorded on July 28, 2022.
Form customizers are SharePoint Framework components giving you an option to override the form experience in a list or library level by associating the component to the used content type.
https://docs.microsoft.com/en-gb/sharepoint/dev/spfx/extensions/get-started/building-form-customizer
https://github.com/PiaSys/Conferences-Samples/tree/master/spfx-list-forms