Outsystems out of box confirmation popup is looks like below
Sometime it is not much flexible to customize the title, button labels and UX as well.
Hence this customized confirmation pop is enough flexible for title button labels and UX as well developer just need to configure these parameters and it will work as expected.
Below are screenshot of customized confirmation popup
This version has fix to ConfirmationBoxWithLoader.
Change: SaveText was hard coded. So Irrespective of any input it was showing Save.
Now label is replaced with expression.