It wasn't a typical use case, but my current business leant on a CGI script for a few years at the start. I needed to let users sign up for an email list and rather than spin up an entire app for that, I wrote a Ruby script and ran it CGI-style on httpd because the rest of the site was all static HTML files anyway. Would a dev team have ever taken such an approach? No. But when you're a solo founder, it's a privilege to use as little as is necessary.
I understand you. The bigger the team is, the harder it is to use a technology that isn't the latest and greatest, despite being potentially the right tool for the job. A good example is a VueJS or React frontend backed by a couple of API services when all you needed was a Django app with a view and a model. Or even a PHP page.
