From your feedback

• Wide tables are easier to scroll sideways. Long tables now have a fixed height and scroll inside themselves, with the column headings staying at the top. The sideways scrollbar and the page controls stay close to the rows you're reading, so you no longer have to scroll to the bottom of the page and then find your row again.
• A scrollbar at the bottom of your screen. If a table's own scrollbar is below the bottom of your screen, a thin scrollbar appears there instead. It disappears once the table's own scrollbar is in view.
• You can see when a table has more columns. A soft shadow along the edge of a table shows there are more columns in that direction, on phones as well as on desktop.