These are two workarounds to see documents / list items in a view that exceeds the listview threshold of 5000 items.
Overcoming the listview threshold is as fun as succeeding in the limbo games.
This is changing all the time. When you read this, it might have changed. Today, 2021-01-05, me and my colleague found following two workarounds for listing over 5000 items in a list view in SharePoint Online: