First, you should find the parent element and see where your element is being located after some trial and error.
Here, I am struggling to inspect ngx-chips menu item elements and here they are :)
On the parent element, we right click on the left side bar of the developer tools and select Break on > subtree modifications.
After that, as we continue what we are doing with our page, debugger appears. We do not take any action with the debugger; just continue to hover over the page and go on inspecting our element.