Recently I looked at the performance of Ubuntu 26.04 LTS vs.
Windows 11 on the Intel Xeon 678X running within the HP Z4 G6i workstation.
Linux performed admirably as one would expect.
With this Intel Xeon Granite Rapids WS workstation from HP though commanding a retail price more than $46,000 USD, you likely want nothing but the utmost performance out of it.
So for those looking to maximize the OS performance, here are some numbers from the HP Z4 G6i workstation when running not only Ubuntu 26.04 LTS but also Fedora Workstation 44, AlmaLinux, and the performance-optimized CachyOS.