Extension popups. Install Chrome extensions (uBlock Origin, password managers, and the like) and their toolbar icon now opens the extension's popup when you click it, on any real page. Scoped per profile.
Note: popups open on real sites, not the blank new-tab page (there is no page there for an extension to attach to), the same as most browsers.
Includes everything from 1.1.0 (Widevine streaming) and 1.0.0 (AI panel, profiles, privacy, the memory dashboard).
Install (Windows): the installer is unsigned, so SmartScreen warns on first run. Click "More info", then "Run anyway".