The Done column allows you to clear issues from the list. But this sounds like it deletes them. I don't want to delete them. Just declutter the board. Can they be archived so that you can view them in the archive at a later date? Much like Trello?
look here
https://community.atlassian.com/t5/Jira-Software-questions/How-do-we-Archive-the-Done-issues-in-a-project/qaq-p/1481439
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