General questions
What is the best way to share event photos with guests?
The short answer
The best way depends on the event, but the principle stays the same: give each guest easy access to their own photos, with nothing to install and no digging through a huge pile.
A WhatsApp group is fine for a few spontaneous photos and a cloud folder is fine for backup, but both make it hard for guests to find themselves.
Pairing a shared album for the overall atmosphere with a personal gallery for every guest gives the most comfortable experience: everyone sees both the night and themselves.