Additionally, I'm testing orbit on an ubuntu 20.04 VM. I'm observing the following error. Could someone kindly direct me what the issue is here?

ubuntu@ubuntu:~/Desktop$ sudo orbit shell
2021-05-18T04:15:06-07:00 ERR  error="download target osqueryd/linux/osqueryd: tuf: unknown target file: osqueryd/linux/osqueryd"

I think I've identified the issue and will be pushing up a fix shortly.

Was the fix part of any of the fixes in the most recent push (#793, #802)? Apologies for the potentially noob question, I'm not familiar with Go.

I fixed it in https://github.com/fleetdm/orbit/pull/23/files and just pushed an 0.0.3 release that includes the fix. If Orbit is running as a service it will auto-update and

sudo orbit shell

will work. Otherwise I think a

sudo orbit

would let it upgrade and then it should work.