[ignurant]

For what it's worth, the last few years our we've sliced off a few custom client apps in Rails and it's felt like a great tailwind. We've been running a profitable BI app for around 15 years, but it's really hard to maintain. The dev team decided we want to rewrite it from .NET, Python, React into vanilla full-stack Rails. We were planning to rewrite it anyway to fix many old assumptions that turned out to be wrong and made maintenance a lot harder. It should also reduce the required coordination of backend API + frontend being that it's more cohesively developed together. But ultimately, we've enjoyed using an opinionated framework that has all the typical "web app" things batteries included and well-established. It helps discovery.

I think it works well for SaaS type offerings where you have a low number of high-value clients. We don't do high-traffic public sites. Perhaps my opinion would be different then.