As with every Google software rollout, it’s very slowly making its way to Android devices left and right. For a while now, Google has been AI-ifying.
For a while now, Google has been AI-ifying everything it owns, and the latest AI infusion just went straight to the Play Store on Android. This is now showing AI generated review summaries for apps listed in the store, which should save you a lot of time skimming various app reviews to get a feel for how good or bad a specific app is.