Hello. I was wondering if there is a way I can update Osquery on my Mac without having to download the .pkg file of the latest release(I believe this is a noob question 🙂 )

Out of the box no, however there is some projects & sidecars meant to address this for example Orbit https://github.com/fleetdm/fleet/tree/main/orbit & https://github.com/kolide/launcher Which both use the concept of a Notary server as a publication location to update based on relevant info. Homebrew as a package manager can also be used to update via brew upgrade.

You can download a tarball from the github releases page.