Hello @nichere,
There are 2 ways to disable the top bar in OceanWP theme.
1. General options
Navigate to WP Dashboard > Appearance > Customizer > Top Bar > General and uncheck the “Enable Top Bar” option: https://postimg.cc/CBnYsjMy.
2. Under the page settings
Navigate to your desired page, then at the top and right of the page, click on the “O” icon, in the “header” tab, you can disable the top bar: https://postimg.cc/MvQMpQ1F.
Note: for method 2, you need to install the Ocean Extra plugin to see OceanWP settings under the pages.
Save all changes.
I hope it helps.
Best Regards