Toast and eggs ?Watch
Texture is definitely different and the taste of the yolk is certainly similar since it's generally defended from direct cooking, but the radically different temperatures and the introduction of fat when cooking fried eggs yields a different taste to the white.
Essentially, yes. Although to be pedantic a poached egg should not be cooked in boiling water but rather slightly below that, so when you see the first bubbles as it approaches boiling, drop to a low heat to bring the temperature of the water down and then add your eggs.
Egg and cress is beautiful too