Hi!
My Answers:
We use Wappler (https://wappler.io)
Most of what we've built is not in public domain.
One project we can share is https://jgrnaut.in (in beta) - built with Wappler, it's SPA built on PHP. It's a b2b catalogue for a furniture manufacturer - can be expanded into a full fledged e-commerce store (!when the client wants to).
We prefer low code because it takes care of a lot of boilerplate stuff for us - speeds up the dev process significantly. Wappler is extensible - it allows you to write your own for matters and modules - we haven't found ourselves in a place yet where we wanted to do something but couldn't do by adding some code to it! Our clients prefer Wappler because it gives them the flexibility to manage day-to-day without developer dependency - API builder in Wappler allow non-tech users to build very complex business logic wrapped in APIs for internal or third party consumption.
So, what is it that you use?