Ahoy !
–> Use folders for the onetime shots to be well organized
–> Have dates in the folder names
–> Have location also in folder names or the name of the event that relates to the affected photos
–> if you use BFS attributes to store related data of the pictures or tags to find pictures by its content, then you may want to keep these attributes. No problem. Just zip the affected directories before copy them elsewhere.
Well BFS fully functional under Haiku - I mean you can read/write.
However in case accessing files of it on other OS sometimes not an option or read-only.
For Linux , possible, but depends on distribution.
On Linux Mint it works for me : access my BFS thumbdrive read-only.
Meanwhile on Nobara I couldn’t use it, as that is a Fedora-based distribution, so as I found :
BFS not available for Fedora by default as this BFS Linux driver considered experimental, and such types of drivers are not delivered for Fedora by default.
For Windows , in 2023 Pulkomandy shared a software that he fixed, here in the forum
I do not know what about macOS or BSD UNIXes actually, I do not use or read about them until now.
Once I had a GhostBSD thumbdrive but that used UFS I assume, and hardly another FS for RW, but rather RO use - if I remember well.
So it depends on - from a perspective - how your IT necessities, habits are requiring anything else OS than Haiku ..