You can apply to join the Google Workspace Developer Preview Program to get early access to certain features. Features in developer preview have already completed early development phases, so they’re ready for implementation. This program gives you the chance to shape the final stages of feature development with feedback, get pre-release support, and have your integration ready for public use on launch day.
The Google Workspace Developer Preview Program (DPP) gives you early access to new features. If you are developing Google Workspace products and solutions, it’s a great way to stay ahead of the curve and provide feedback before feature release. Anyone can apply to join the DPP, just follow the source link, but note that you can’t enroll with a gmail.com account.
New Google Chart Card UI has just been added for buttons, chips, collapsible sections, and overflow menus. These additions extend the capability of Google Chat, allowing the possibility for users to interact with external tools and services without leaving the chat and continually having to context switch.
The public documentation page includes a list of all active developer previews. While these pages don’t offer visuals of the features, existing DPP members received a nice set of visuals in the email update. This example includes chips and a customizable control button for a collapsible section:
I’d highly recommend registering for the DPP so you can see what is coming in Google Workspace.
Source: Developer Preview Program | Google Workspace | Google for Developers
Member of Google Developers Experts Program for Google Workspace (Google Apps Script) and interested in supporting Google Workspace Devs.