The Samsung browser offers a wide range of search engines ex works, with Google set as default, and we can change the default search engine to the following if you wish:

Android 10 (One UI 2.0)
Step 1:  Open the Samsung  Internet  Browser
Step 2:  Open the  menu
Step 3:  Open the  Settings
Step 4:  Tap on  Search engine
Step 5:  Choose desired  Search engine
  1. Open the Samsung Internet Browser
  2. Open the menu
  3. Open the Settings
  4. Tap on Search engine
  5. Choose desired Search engine

Samsung Instructions