Yes, as @Darkassassin07@lemmy.ca says, just create a new user for each event you want to share photos about: ‘BeachBBQ’, ‘WeekendStay-July’ etc, then bind those user accounts to whatever folders you want to have the photos in and set the user restrictions to upload, share, but not delete for example.

I also use various FileBrowser instances, with a different subdomain pointing to them, also as a way to filter out usage as well. collegefriends.mydomain.com could take you to a FileBrowser instance that only has access to photos from a certain friend group. Not sure how useful that would be to you, but it’s another way of controlling the data flow.