Missing photos from November 2024 to March 2025 on iPhone

There is a gap of 4 months (November 2024 - March 2025) in my photo library. I know I took photoes in that period and have not consciously deleted anything. Is there anything I can do to track the photos down? I've checked all my folders including the hidden one. There is nothing either in my iCloud account.

[Re-Titled by Moderator]

Original Title: Missing photos