Indesign Version 16.1 Windows 10 Home 64-bit

Given some random body text, the default language setting was English: USA, if I want to change this to any other language like English: UK (for spell checking reasons) it causes the turnovers of certain paragraphs to change.

Different fonts do the same thing, I primarily tested on a non-type 1 version of Melior and Helvetica but also tried some Adobe Fonts. However, different language settings cause different bits of text to change their turnover, ergo English: USA has different turnovers to English: USA Legal.

Changing this setting in the Paragraph style or by selecting the text and changing it in the character box leads to the same output.

I've added a photo showing an example of this, I'd attach a test document but can't.