Get complete text of a truncated tooltip using javascript in chrome devtools

I am trying to fetch the complete list of users who have liked a post/comment in googleChat webapp. Right now, when you hover on the "like/thumbs up" icon, a tooltip shows only 10 names and rest are truncated with ellipsis with a count. I want to fetch the full list of users. I have tried using innertext but it shows what you see on the UI but I believe there must be a way to fetch the complete list from somewhere. I am new to javascript and have been using scripts to fetch such hidden text/elements. Need some tips on the same.

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