Deleted issues
Click on site insights in left navbar - > select Deleted issues in top navbar
You can see all the details related to issues
In issues change history, you can see created,updated & deleted count date wise
You can see per user deleted count in pie chart at top right corner
You can see all deleted issues history in Issues delete history table format present at the bottom
You can see more details like project, issue key,issue type,initiator etc
You can search specific deleted issue by issue key, also you can filter by project name, issue type & initiator

Restore issues
You can see the issues of hierarchy level 0 and above i.e Epic, story etc. you can see sub tasks after expanding the parent issue
You can restore deleted issues quickly by just selecting the issues and clicking on “Restore” button
E.g. Restoring story issue AS-16 from Automation - software project in above screenshot
It will render on Jobs page. you have to click on recent job id to check job status
