......and the tech stack is usually obvious in the job posting.
If it's that vitally important to you to only work at jobs with tech stacks that will "advance your career" beyond that job, why would you even apply to a job that doesn't show one you consider worthy?
I made an exception for one specific technology that in my experience draws a particularly intolerable crowd, while offering peculiarly poor pay to make up for the unusual degree of tolerance for abuse that is required to navigate the social dysfunctions such people invariably create and foster. What gets so up your nose about that, anyway?
If it's that vitally important to you to only work at jobs with tech stacks that will "advance your career" beyond that job, why would you even apply to a job that doesn't show one you consider worthy?