The Google reported to drop Active Edge feature has appeared on older previous pixel smartphones including the budget Pixel 4 will not get this feature.
It has been reported by XDA- Developers, the upcoming Pixel 4a will be first Pixel phone is not have Active Edge feature.
A screenshot of the Gesture setting menu confirms that the feature has been removed. Google has decided to remove the feature. There are speculations it may be become redundant since there are now more ways to call up the Google Assistant.
Google has choose to postponed the launch of mid-range Pixel 4a series globally are rumored to launch on May 22, 2020. An update from the leak source, Google delayed the exclusive launch of Pixel 4a.
Source: Pixel 4