When the board gets busy, switch to the Table view and filter it down. Filters apply across your whole ticket set, not just what is on screen.
Filter and search
On the Tickets page, choose the Table view.
Type in Search tickets to match a subject.
Click Filters to open the panel and narrow by Status, Type, Category, Priority, and Team. Click a value to apply it, click it again to clear it.
Use Clear all to reset, or Done to close the panel.
Ownership pills
Above the list, the All / My tickets / Unassigned pills quickly limit the list to your own tickets or ones with no assignee, without opening the filter panel.
One label to expect
In the filter panel the first status is labelled Submitted. Everywhere else, on the board and in the table, that same status shows as Open. They are the same status under two names, so filtering "Submitted" gives you the "Open" tickets.