Google introduced Android 12L, a “version” of Android to support apps on folding phones, tablets and Chromebooks. It looks like Responsive Design 2.0 to me and the first iteration didn’t improve mobile apps on Chromebooks.
Android 12
Google I/O 2021: 9 new Chromebook features on the way
Day 1 of Google I/O 2021 didn’t reference Chromebooks much. After watching a video presentation I found 9 new Chromebook features on the way.