It would be tough to build a business or a startup on top of a low/no code platform.

There is too much risk and lock in what if the platform raises prices, goes out of business, something happens where they lose your data/app.

How well will it scale? What will the costs be at scale?

I can't imagine trusting a platform holding all your cards like that.

There are too many reasons to build on open source and own your own destiny.

Granted sometimes a startup doesn't have a technical founder but there are still lots of decisions to be made and technical decisions for them to be successful.

I just can't see going all in on a no/low code platform of any kind.