Now since Latest X issues are gone on the dashboard,
and Problem view widget is implemented instead, which inherited Latest X issues feature to show trigger desription on mouseover, which is a great place to store additional info about problems.
Unfortunately, this is not available in Problem view separate section.

Problem view page and Dashboards problem view widget should be provide similar user experience as much as possible,

consider to add mouseover with trigger description inside problem view so users can use this field as much as possible and provide useful and helpful information there for end users and be confident that users would be able to see this info.