I have also found this about Swedish > Rounded vowels have two types of rounding: /ɵ/, /ʉː/, /ʊ/ and /uː/ are compressed [...] > /ʏ/, /yː/, /œ/ and its pre-

I have also found this about Swedish > Rounded vowels have two types of rounding: /ɵ/, /ʉː/, /ʊ/ and /uː/ are compressed [...] > /ʏ/, /yː/, /œ/ and its pre-/r/ allophone [œ̞], /øː/ and its pre-/r/ allophone [œ̞ː], /ɔ/ and /oː/ are protruded [...] > Type of rounding is the primary way of distinguishing /ʉː, ɵ/ from /yː, œ/, especially in Central Standard Swedish. https://en.m.wikipedia.org/wiki/Swedish_phonology https://en.m.wikipedia.org/wiki/Swedish_phonology More about different kinds of rounding at https://en.m.wikipedia.org/wiki/Roundedness https://en.m.wikipedia.org/wiki/Roundedness