Duplicate the table (query) in Power BI

Select the table from the Queries pane and from the Manage section of the Home menu, select Duplicate. It will duplicate the table with all the applied steps in the original table.

Duplicate the table (query) in Power BI

Alternatively,

Duplicate the table (query) in Power BI

After duplicating, both are the independent queries, change in one query step does not affect the other query.

Duplicate the table (query) in Power BI