Search the app list in Trends

The app list in Trends is sorted by time, which is exactly what you want for the top of it. But a normal week can already hold 40 or more apps, and the all-time view holds every app you have ever opened. Looking up one specific app means expanding the list and scrolling past everything above it.

A small search field inside the Apps section would fix that: type a name, get that one row. And since the filter would stay put while you page through weeks, you could also use it to follow a single app back through time.