> You also won't see this for senior management. As a VP/C-level, I've never had a potential employer put pressure on salary during a negotiation because of my location (though it's always been domestic). It's never even come up besides relocation discussions.

This is absolutely true and it's because executives usually have spent at least some amount of time doing "sales" type roles where they learn what value selling is. I always do value selling during my salary negotiations, and I too pretty much concern myself only with how much I bring to the table and what a fair cut of that for myself is. My location has absolutely nothing to do with that, and I've delivered a ton of value in my career from far more remote locations than most remote workers find themselves in.