You can sync messages from phone to phone. https://support.signal.org/hc/en-us/articles/360007059752-Backup-and-Restore-Messages#android_transfer

There is no reason why the message sync that works from phone to phone could not be implemented on the desktop client as well.

Like with anything, you will not know if you are going to be good at it until you spend a lot of time trying and failing and learning. If you enjoy it, just keep doing it.

While you are mastering Spring, I am mastering libraries that do the thing my program needs to do.

While you are trying to debug to your Spring app, which is a huge PITA because Spring is a rat’s nest of conflicting configuration paradigms and overlays and fills your call stack with dozens of layers of generated methods, I have finished my work and am at the beach helping my coworker debug his Spring app because he didn’t listen to me when I said not to use Spring.