Tables are no longer sizeable within new editor, can someone help with tables?

[Mark Schlaudraff]

Within the old editor, I was able to create a table that did not expand the whole page, now no matter what I do it goes the full width of the page.

Before the new editor I could do this:

Now the table is no longer sizeable, it expands the complete page as seen below:

When the system forces conversion of the page to the new editor, it completely jacks up the tables and layout of the page

If someone in the community can't answer, can someone from the Atlassian support team answer this?