Devices that are connected to the Samsung smartphone or tablet via Bluetooth can send and receive files such as photos, documents or even videos.

Android 10 (One UI 2.0)
Step 1:  Open the  Gallery
Step 2:  Open desired  photo
Step 3:  Tap on  Share
Step 4:  Tap on  Bluetooth
Step 5:  Choose  device  you want
  1. Open the Gallery
  2. Open desired photo
  3. Tap on Share
  4. Tap on Bluetooth
  5. Choose device you want

Samsung Instructions