How to get to start of a long chat

Hi there, I am part of a group that has been engaging in a chat about a certain topic for 7 or 8 months.
As you can imagine there are MANY posts, hundreds…
Is there a way to jump back to the start of a chat?
I’ve tried using page Up and scrolling but it takes many !!! minutes to reach the beginning
I hoped Control Home might work, but no luck
Any advice would be appreciated
Thanks in advance