The font does not work properly in the text viewer

"Cascadia Code SemiLight" is specified.
Green = Appears correctly (in the case of English)
Yellow = Appears in the wrong font (in the case of Korean)
Red = Appears in the wrong font (even though it is English)

Microsoft is already preparing the next big update for Windows 11 for the end of 2024, codenamed "Hudson Valley", with a bigger focus on AI. In a new support document first spotted by Windows Latest, Microsoft has confirmed "Windows 11 24H2" is real and coming later this year.

"Title : 큰 차에는 큰 책임을"
프랑스 파리 시가 주민투표를 통해 대형 스포츠유틸리티차량(SUV)의 시내 주차비를 3배 올리기로 했어요.
큰 차는 (1) 사고가 났을 때 위험도 더 크고 (2) 오염 물질도 더 많이 배출하고 (3) 공간도 많이 차지하기 때문이라고.
파리는 차보다는 도보·자전거를 중심으로 도시를 조성하는 ‘15분 도시’ 프로젝트를 진행하고 있기도 하고요.
일부 시민들은 ‘원하는 차를 탈 수 있는 자유가 훼손됐다’고 반발했어요.

The support document, first discovered by Windows Latest, may have unintentionally confirmed the arrival of Windows 11 24H2. The documentation talks about the EnumDeviceDrivers function, a component used by developers and systems administrators to work with drivers.

Additionally, for yellow:
Expected = D2Coding font to be applied
Actual = Gulim was applied

The text viewer uses a Windows control which will change fonts if the text has characters which aren't supported in the chosen font.

I don't know if we can change that. But we have been thinking about making a new text viewer based on another control for a while. (For some other features/benefits as well, but this is another in that list.)

Thank you for your response. I will wait patiently for the new text viewer.