This depends on your goals. If your goal is to drive efficiency into your processes, drive down tech debt, or fix pain points for customers of your existing products, sure. Most people at a your company with have thoughts, and lots of them will have good ideas.
If your goal is to pivot the company into new verticals, or to develop an entirely new product, then "asking staff for ideas" isn't a likely way to succeed.
Most of the staff doesn't have the visibility into the business to understand what may or may not make money. You can have a great idea, even on that could be a successful product, but it could still be a bad fit for the business.
If your goal is to pivot the company into new verticals, or to develop an entirely new product, then "asking staff for ideas" isn't a likely way to succeed.