Since restarting the phone only provides temporary relief, here are step-by-step fixes to try, starting with the simplest ones. These are based on standard troubleshooting for Samsung devices and app-specific advice.1. Force Stop the AppThis immediately closes the app and any stuck processes without deleting your data.Swipe up from the bottom of the screen to open the Recent Apps view.
Find the Bluesky app, then swipe it away to close it.
If that doesn't work: Go to Settings > Apps > See all apps > Bluesky > Force stop.
Relaunch the app and see if the home screen responds.  

2. Check Your Internet ConnectionFreezing can happen if the app is trying to load content but the connection is unstable.Turn off Wi-Fi or mobile data for 1-2 minutes, then turn it back on.
Switch between Wi-Fi and mobile data to test.
If using Wi-Fi, restart your router.  

3. Clear the App's CacheCached data can cause glitches; clearing it won't log you out or delete your account info.Go to Settings > Apps > See all apps > Bluesky > Storage & cache > Clear cache.
Restart the app and test.  

4. Update the Bluesky AppOutdated versions can have bugs that cause freezing, and recent updates have addressed similar issues.Open the Google Play Store, search for "Bluesky," and tap Update if available.
If no update shows, check again later or enable auto-updates in Play Store settings.  
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5. Clear App Data (Reset the App)This resets the app to its default state, which might fix persistent freezes, but you'll need to log in again.Go to Settings > Apps > See all apps > Bluesky > Storage & cache > Clear storage (or Manage storage > Clear all data).
Relaunch and sign in.  

6. Uninstall and Reinstall BlueskyIf the above doesn't help, a fresh install can resolve corrupted files.Long-press the Bluesky icon on your home screen or app drawer > Uninstall.
Go to the Play Store, search for "Bluesky Social," and reinstall.
Log back in and test.  

7. Optimize Your Phone and Check for System UpdatesBackground processes or outdated software on the A15 could contribute.Go to Settings > Battery and device care > Optimize now (or Auto optimization).
Then, check for updates: Settings > Software update > Download and install.
Also, close unused apps: Swipe up to Recent Apps and clear them out.  

8. Boot in Safe Mode to Check for ConflictsThis disables third-party apps to see if another app is interfering.Press and hold the power button until the power menu appears.
Long-press the Restart option until "Safe mode" pops up, then confirm.
In safe mode, open Bluesky. If it works normally, the issue is with another app—uninstall recent ones.
Restart normally to exit safe mode.
9. Run Diagnostics (If Issues Persist)Use Samsung's built-in tool to check for hardware/software problems.Download/open the Samsung Members app from the Play Store (if not pre-installed).
Go to Support > Phone diagnostics > Test all (or focus on display/app tests).  
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If none of these resolve it, consider a factory reset as a last resort (back up your data first via Settings > Accounts and backup), or contact Bluesky support through their app/website or Samsung support for A15-specific help. Let me know if a particular step needs more details!