Скачать или смотреть Keeping the Git branch list tidy by removing stale branches

Keeping a clean and organized branch list in Git is crucial for maintaining an efficient and streamlined development workflow. Stale branches, which are branches that are no longer needed or actively worked on, can clutter the branch list and make it difficult to find and manage relevant branches. Therefore, it is essential to periodically remove these stale branches to ensure a clean and manageable branch list. Before removing a branch, it's crucial to ensure that all relevant changes have been merged or properly saved elsewhere. This ensures that important work is not lost when deleting a branch.

You can use your own regex pattern to match your multiple branch names to remove them at once:
git branch | grep -e '{pattern}' | xargs git branch -D