Lazareva (also a famous TV personality) gives Fiona a bright, slightly theatrical princess voice that smoothly transitions into her ogre persona. She’s less “Disney princess parody” and more “modern Russian woman trapped in a tower.” The famous opera-burst scene is brilliantly unhinged in Russian.
To understand the Shrek dub, one must understand the Russian tradition of "dubbing." Unlike subtitles or voice-overs (where a single narrator reads over the original actors), Russia developed a sophisticated "full dub" industry during the Soviet era. The goal was total immersion; the foreign actor had to sound as if they were speaking Russian natively. shrek russian dub