Some hosts on AD are host.company.local, but my Linux machine only resolves as host.local not host.company.local. Why?

This is just for curiosity, no work issues or needing to fix this.

I thought that all hosts on a LAN should be able to resolve to that FQDN of host.company.local. My resolve.conf on my Linux box shows 127.0.0.53 and does have "search company.local".

The most likely explanation I can think of is that my Linux box needs to be added to the local DNS somehow?

Ideas?