Native ARM64 Software
Internet
If you use the built-in Edge browser it will be native ARM64 code, but there are other alternatives.
Firefox
Download Firefox for ARM64 The stable, non-beta release of Firefox for ARM64. Will work just like any other install with updates and everything.
Media and Entertaiment
VLC Media Player
VLC has an ARM64 version, but no installer. You can download the official, no-installer version, or my un-official ARM64 VLC installer