Rotating XDR screen by 90 degrees with Mac minis

Problem - How to get a new StudioXDR Vesa screen to Rotate 90 degrees?

I have two Mac minis running Tahoe 26, and a Studio screen and an older LG Superfine screen. In System Settings > Displays the software includes the 'Rotate' option for the LG Superfine, but the later software for the two Studio screens has dropped the 'Rotate' command.

It seems silly for Apple to still sell Studio Displays with Vesa Mounts but without the software included to rotate the image to Portrait mode.

SO have they hidden 'Rotate' away somewhere else where I can't find it? Help Please! Chris M