It's not that reassuring for someone just starting out wanting to test a random idea that you have to do these big things in order for it to see the light of day.
No-code tools are becoming so powerful that you can build all sorts of things and I built a site with lots of tutorials for that purpose[1] (It's a membership site, some tutorials are free). Things like a marketplace app like Airbnb[2], an Instagram like app[3], eBay marketplace[4], tools for product/market fit[5], membership sites and a lot more using a number of tools.
Now I know lots of people have their opinions about cloning sites but personally, I think if you have an idea for a specific site which would work like X then I don't see why using the user experience of a similar site can't be the starting point for where these non-technical folk start testing their ideas.
Also, I think it's powerful for professionals to be able to build themselves small tools in order to increase their workflows, productivity etc without relying on dev resources especially in an increasingly remote workforce.
[1] https://www.makerpad.co/ [2] https://www.makerpad.co/tutorial/airbnb-mobile-app-clone-plu... [3] https://www.makerpad.co/tutorial/instagram-clone-using-glide... [4] https://www.makerpad.co/tutorial/creating-a-marketplace-app-... [5] https://www.makerpad.co/tutorial/how-superhuman-built-an-eng...