There are many changes in Safari with iOS13 and iPad OS and some of them were explored in articles within AUSOM News November 2019.
For Example:
If you tap the X (top-left of an open Tab) you will close the Tab.
Long-press on the X gives the options to:
•Copy,
• Close Other Tabs,
• Arrange Tabs by Title, or
• Arrange Tabs by Website.
