To use the Developer Tool to find out what elements appear only while the mouse cursor is on

How can I select a dynamically generated DOM when I can't select it with my mouse?

For example, in the recent PC version of Twitter, if you hover your mouse over the link to someone else's account name, such as someone else who is tweeting on a timeline, it pops up and displays information about the tweeter or RTed person.It's exactly like the following.

If you take your mouse to the account name link like a red circle, a blue box-like pop-up will appear.

However, this pop-up disappears when the mouse goes out of the pop-up.
As a result, the pop-up disappears before pressing the element selection button below, so the DOM is not found.

I don't know everything because it hasn't been long since I developed the web.
I think I can use something like a breakpoint to pick up a DOM with these dynamic and disappearing elements, but I don't know how to do it.
Please let me know.