Hello @fouldsy99,
Thank you for reaching out,
To change the page title heading tag, please navigate to WP Dashboard > Appearance > Customizer > General Options > Page Title: https://postimg.cc/rdPJGYzC. These are general options.
It is impossible to change the heading tag on specific pages. But you can disable the page title section and use your own page title section. To disable page title on specific pages, please go to the edit page, then open the OceanWP Settings by clicking on the “O” icon at the top and right, then open Title and disable it: https://postimg.cc/gxf5mJHP.
To edit the title for the widgets, you can remove the title in the widget and add a heading block using your desired heading tag.
I hope it helps,
Best Regards