Spellchecking in CREO's embedded browser unusable

Hi there,

it seems, that for all non-english installations and customers of Creo Parametric, the implemented and by default activated spell-checking is unusable.

Even worse, when the complete text is red-curled-underlined, the text is barly readable and makes it easy to miss a real typo.

I found this page, which addresses the issue: https://www.ptc.com/en/support/article/CS39069

But unfortunately (and usual), PTC does not provide a helpful resolution ( "no plan to fix" & "works in IE").

Does someone know, how to disable the embedded browsers spell checking or how to change the language for the spell checker ?