One of the main benefits you get to running a proper aarch64 userspace is ability to run a modern functional firefox install. The 32-bit builds usually don't support anything newer than a very old LTS release. It's been hell trying to build and/or run that target (see: https://bugzilla.mozilla.org/show_bug.cgi?id=1452128 )

This is especially important if considering use as a low-end desktop as Chromium will eat through 4GB of ram like it's nobody's business.