Ask HN: What Photo Solution do you have?

Over time, I've gathered a collection of photos spread across different devices, such as aging computers and obsolete smartphones. What are the common approaches that individuals use to effectively manage photos originating from various family smartphones, dated computers, and similar origins, all while guaranteeing the security of offsite backups for this diverse assortment of pictures? Additionally, what techniques can be employed to track down photos residing on antiquated Windows systems, outdated network drives, and similar locations? How about backing up to the cloud? Where and How? (AWS? RSYNC?)