I was surprised to learn several years ago that there are still companies that require this. Check out this job posting, in Seattle of all places.
https://www.smartrecruiters.com/expeditors/743999981793070
I spoke to them in the past, that last bullet point definitely means suit and tie. I immediately noped out when they told me that. When I lived in Seattle and commuted on the bus to downtown, you could tell the few on the bus who worked there simply by how they were dressed.