Getting KDE functions in dialogs

Hello, I wanted to know if anyone managed to get the KDE functions in the dialogs by following this link:
https://www.reddit.com/r/kde/comments/x352nu/using_the_kde_file_dialog_in_all_gtk3_applications/?rdt=56369
If not, is there a way to achieve it or is there a plan to implement them directly in the operating system?
Thank you