I would bet there’s a (very) nontrivial number of people who have attempted to build something in Wix etc and got bogged down and frustrated enough to quit.

Lots.

I’m a pretty sophisticated user (both a designer and software engineer) and I’ve ragequit several of these tools before.

I hate Wix. I tried it to see if it could streamline things for me about a year and a half ago, and I quickly realized I could set up an Eleventy site, customize it and host it way faster. Now that agents are better and Cloudflare's API is fully exposed, I can have the agent search for a domain, buy it, set it up, set up the site and get it working on pages and probably be done before Wix onboarding was even complete.

I recommend to all my customers - publish and use your own domain.