Currently we have a view for all open tickets within a given support team. It has various conditions but it explicitly states status: < pending.
We also have certain "on hold" tickets which we'd like to include in this view, but only specific on-hold tickets. The equivalent of status:hold && tag:follow-up. The limitation we've run into is that we can't a single condition that has >1 element.
The follow-up tag is only applied to certain on-hold tickets; the tag isn't applied to any other tickets in any other statuses, so we can't include tag:follow-up as an ALL condition since doing so would exclude all of the normal open tickets. And we can't use status:open or status:hold as an ANY condition because then we'd get either-or.
All open tickets for the group && only on-hold tickets with the 'follow-up' tag