I'm just a normal Android user. My phone is Samsung Galaxy S10 (Qualcomm S855 variant). I'm satisfied with this phone, but I always felt that the Android version of some Apps are laggy when using, like: Twitter, YouTube, Google Maps, and even the Google Play Store. You will feel the scrolling stutter and lag in many scene. Although it's three years old phone, I don't think it doesn't have enough performance to running these apps. I've tested on another phones (Galaxy Note10) and the situation is same. So I think the application itself has optimization problems, or the latest version has bug.
I have tried Clear App Cache and Re-install again from Play Store. The problem is remains, so I turn off autoupdate in Play Store and install previous version through APK (Download from APK Mirror), all the problems are solved, it's working well and feel smooth when you scrolling or do any operation, and then I tried install the latest version of APK, it's still not have any problem, working perfectly too.
I know that the apps installed from Google Play Store are distributed in the Android App Bundle (AAB) format. So here is the question: will the AAB make Android apps laggy?