Hello, I am trying to make a similar mega menu but I have my doubts if it is possible to create a module like this and use it as navigation on my site.
I share an image of the layout..
Trust you are doing great.
I have checked your above comment.
If your website is created in the hubspot by using the hubspot theme then you can create the new separate module for header/navigation and can add on the page after development.
Hope that would helpful.
Thanks
Niharika Goyal