Many Amiga engineers were UNIX heads, and even Amiga DOS /Workbench started as what might be another take into UNIX like systems with multimedia hardware, when they pivoted away from a games machine.
There are some vintage computer club talks where they dive into this.
On the other hand, thankfully they haven't taken that approach, as otherwise wouldn't have been the multimedia machine it turned out to be, or have OS design decisions like its use of Libraries, Datatypes and everything scriptable that are yet to be mainstream.
With exception of a few UNIX systems like Irix, Solaris with NeWS, NeXTSTEP, Apollo, everything else tends to be the same deck of cards reshuffled.
There are some vintage computer club talks where they dive into this.