They typically move more slowly - have more layers of design by committee than you will. They’ve already built a large ship that requires movement, you’re in a speedboat. Sure, they can crush you, if you move at the same speed and in the same direction - use your agility to move.

You're small enough that they don't care. If you grow big, then they buy your or copy your business and when that happens you'll have earned a lot of money, hopefully.

low? lets use Zoom as an example. its competitors already doing exactly what Zoom does and yet they lost customers given they were in the market much much longer than Zoom.

For every company that will buy from them, there's a company that won't buy from them for 'religious' reasons. Deals are complicated, it's not always an 'engineering' decision.

10+ engineers is also 3 designers, 2 online marketeer, 2 managers, etc. They would need so much more revenue than a solo dev.