In the new UI we have added a dedicated filter for ConnectWise boards or Autotask queues.

For ConnectWise ticket and project views:

For Autotask ticket views:

ConnectWise board and Autotask queue are common choices for filtering tickets, and using this field for filtering is easier than setting up the equivalent filter in the query builder.

Furthermore, for ConnectWise ticket views, the selected boards are used to filter the list of statuses on the Workflows tab, making it much easier to assign statuses to workflow stages. This can reduce the number of statuses in the list from hundreds to just 10 or 20.

For what it's worth, the ConnectWise board selection above is equivalent to this query builder filter: