Read attribute vs Notification data size

Hi,

Thank you all for your reply, I’m not sure if using attributes this is the best approach for this problem, so far is the only I have found.
Just to add some context the idea is stream compressed audio data from a device to the other using BLE 5.1 in prototyping stage and then migrate to BLE 5.2 isochronous channels.

For now I’ll try packet fragmentation and see what speeds are archived.