Any idea how I can get the "toggle both elements" button to work as a open/close all button
At the moment in the example, if the first element is opened, pressing "toggle both elements" will close that and open the second.

I want it so that so that if the button is pressed, then they either all open, or all close on the press of "toggle both elements"

Reduced test cases

see https://getbootstrap.com/docs/5.3/components/collapse/#multiple-toggles-and-targets

What operating system(s) are you seeing the problem on?

Windows

What browser(s) are you seeing the problem on?

Chrome

What version of Bootstrap are you using?

5.3.5