Can I build an app with No-code or Low-code tools?

This girl says no: https://www.youtube.com/watch?v=xkMuykgicYA. This guy say yes: https://www.youtube.com/watch?v=Rcot3MYZh_g . In my experience, it is possible to build great apps using low (no)-code platforms. Personally, I just released an app based on low (no)-code. It works great in my opinion (you can find the link in app show case sction). So give it a try and see for yourself. So I’m talking concrete examples and facts, not hearsay and so on. And who said it’s easy to do? It’s not like you can come in and put the app together like a lego puzzle. The more iron-clad logic and simplicity (which is very hard to do), the better your app will perform.