I have no strong opinion on serverless but I’ve used Rails for 13 years now (in massive $multi-million SaaS products as well as hobby projects) and it still makes me happy. I keep thinking about learning Node and React but I just can’t be bothered because Rails lets me get things done so quickly while also being a joy to write Ruby and Rspec. Regarding hosting, I think this is actually a great time to host Rails apps…
All you need is one weekend to really learn a useful amount of Node and React. You can’t spare it?
So that weekend could rabbit hole into complexity figuring out which framework to use.