This feels unlikely, particularly in software and skilled tech knowledge work. First, "What if very few companies support X 3-5 years from now?", where X could

This feels unlikely, particularly in software and skilled tech knowledge work. First, "What if very few companies support X 3-5 years from now?", where X could be health insurance, paid vacation, or a 5-day work week. Yes, Remote-by-default was not demanded/bargained for, but it's still a historic concession toward labor. These genies are hard to put back in their bottles, even though companies try. Second, if you're not leasing office and parking space for each employee or requiring them to commute every day, you're definitely saving money and possibly increasing their productivity (depending on which studies you believe). Third, if you set aside the short-term labor shortage across all economic sectors, there is still a long-term labor shortage of software engineers and similar people. It's really hard to recruit and retain them, but it's easier if you build a remote-friendly workplace, which gets you access to a much larger candidate pool. To pre-empt someone offering a FAANG as a counter-example, those are all weird outliers.