[jrbancel]

Absolutely. "Stack" in "Full-stack" always seems to refer to a Web stack where the back-end is a database, a framework and maybe a service such as ElasticSearch or Redis.

I might be biased but to me, this is web development, not back-end. Back-end is designing distributed systems, data pipelines, trading systems, databases, etc... It has nothing to do with Web development.