Yes, I have 128x64 pixel version.
Update the code as per your suggestion &
Add extra lines of code to test the complete display area
oled.setTextXY(3, 2); // Set cursor position, line 3
oled.putString("Hello");
oled.setTextXY(4, 20); // Set cursor position, line 4
oled.putString("World!!!");
oled.setTextXY(5, 10); // Set cursor position, line 5
oled.putString("123");
oled.setTextXY(6, 1); // Set cursor position, line 6
oled.putString("Testing via");
oled.setTextXY(7, 5); // Set cursor position, line 7
oled.putString("Sofwire");
Result is
