Please note that their GitHub releases are not libre and contain proprietary Google Play Services libraries.
589 karma · joined June 12, 2020
This impacts more than just the default browser as it also provides the WebView Widget used by apps.
The WebView also cannot be replaced by a user as it is directly loaded into the process space of all apps using the widget.
See my https://divestos.org/misc/ch-dates.txt table that compares all the other systems update history.