In brief
Automatic porting depends on the language capabilities of the browser.
Useful to know
hyphens manages word transfer at the end of a line . auto allows the browser to select transfer locations according to the available language rules. For this, the correct language of the document or item is important. [1]
Example: <p lang="bg"> ... </p> with hyphens: auto;. style Dictionaries support and specific behavior differ between browsers and platforms. This is not the same as randomly breaking a long address. A separate overflow rule may be required for URL or identifier. Check real long Bulgarian words in a narrow text block.
Sources
For further detail and to check the information: