But lately it does seem like spinning wheels on the UI front for both. Without a distinct new feature to build the UI around, most UI changes just seem like change for the sake of change (ie. resume/executive driven design). Both OS seem to be approaching a very similar paradigm (Apple becoming more androidy IMO lately). Minor changes aren't going to cause major changes in popularity. "Liquid Glass" does seem to be uniquely disliked, and probably for good reasons, but Apple generally has ecosystem and brand lock-in that will put the brakes on much ship jumping.
The only strategy is to create work so the team isn't disbanded. Add gradients, and then remove them in a few years. But write high-brow text to explain the changes, like an artist who describes their solid gray oil on canvas so it can sell for a million dollars.
Most of Google's work on Android seems to be around making smaller changes for the UX and bigger internal changes (splitting up the OS so individual parts can be updated without the OEM involvement, security changes, etc).
Android had this for 15 years or more...