Hi there,
It’s no problem for me as my site is in English – but wondering if this caveat still applies, and if the relative placement of “system-ui” (ahead of “Segoe UI”) could cause issues in some other languages?
If you want to cater to everyone in a more finely tuned manner, then yes.
And if you must change the system stack order, you can use the generate_typography_system_stack filter.
Example:
add_filter( 'generate_typography_system_stack', function() {
return '-apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen", "Ubuntu", "Cantarell", "Fira Sans", "Droid Sans", "Helvetica Neue", sans-serif';
} );