There are millions of different ways:
You can do your landing pages in WP and easily integrate with newsletter pop-ups and all the other growth hack tricks.
If you have a SaaS you can run the whole subscription system (accounts, billing, renewals, etc.) using WooCommerce.
You can sell digital downloads of your software using WooCommerce.
You can keep your user-facing documentation in WP.
There are plugins for turning WordPress into a CRM so you can track your leads/sales.
etc.
The possibilities are literally limitless.
There are millions of different ways:
You can do your landing pages in WP and easily integrate with newsletter pop-ups and all the other growth hack tricks.
If you have a SaaS you can run the whole subscription system (accounts, billing, renewals, etc.) using WooCommerce.
You can sell digital downloads of your software using WooCommerce.
You can keep your user-facing documentation in WP.
There are plugins for turning WordPress into a CRM so you can track your leads/sales.
etc.
The possibilities are literally limitless.