You're right, but in a production deployment, that extra ram might mean the difference between a close call that you patch the next day and an all hands emergency to call in devops and engineers together during peak usage.
source: been there
(and to be honest the way Linux does acts on OoMs are quite debatable)
If you don't have any more disk space for swap, or memory pressure gets too high, you get the "You've ran out of application memory" dialog box with a list of applications you can force quit, and macOS leaves it up to the user on what to kill instead of the system choosing automatically.
