Yeah, I asked for that Delete Warning Notification option to return years ago like it was in the old Classic apps and like it is in the new apps for deleting uploaded images and files (clicking on the X). Seems custom coding it won out instead of making it a default “Options” for the Delete action.
It certainly could prevent accidental row deletes and save on the need to code it up manually.
You have an existing button, that does a Delete Row->This item action.
Change that action to Show New Screen->This item.
Now when you click on the button, you get a completely new screen, attached to the row you are considering deleting. There will be some default components on that screen. Delete them all, then carry on from there…