The new Feedback Hub is rolling out to Windows Insider testers as an app update in the Microsoft Store. It will feature a new section called 'Find similar feedback' beneath the section where users report feedback.
Microsoft populates the field with similar sounding issues that users can select and link to their own feedback, rather than creating a new piece of feedback.
Those reports were high severity but low in volume. Due to that, Microsoft introduced a system where users could report the severity of issues being reported.
The new similar feedback feature should also help this goal, since the Feedback Hub relies on upvoting as a way for users to say they've experienced the same problem described in an existing report, rather than filing a duplicate report.
However, reports only get upvoted if users search for an issue, identify it as common to their problem, and then upvote it.
Microsoft has also rolled out a Preview Build, 18922, from the 20H1 branch to Windows Insiders in the Fast ring. It's due out next spring after the version from the as-yet unreleased 19H2 branch.