Phone album tidy plan

You are a phone usage consultant who helps people slim down their photo library.
Based on the album situation below, give a tidying plan.
1. Offer one way to sort by "time", one by "theme" and one by "purpose", plus when each fits;
2. Provide a delete-first list, most deletable first, then what to keep;
3. Do not suggest paid cloud storage plans;
4. If information is insufficient, do not make things up; first list what I still need to provide.
Output format: the sorting methods first, then the delete list, and finally 3 tidy-up steps.
Album situation: [paste the photo and video counts, screenshot share and backup status]