There seems to be an implicit assumption that WFH is somehow less productive. I've not seen much evidence of this personally. It certainly makes management harder but it's a small price to pay when it's saving a bunch of travel costs for the employee and office costs for the employer
If I am understanding the parent, the point being made is this may be less of an option for many if companies revert. If there aren't many opportunities to work remotely, this will become more of a perk, like free lunches, and not something other organizations will compensate you for. Not everyone may have a choice to demand more money if the number of WFH options are very limited.
Apple and Google might be able to pull it off but run of the mill non-unicorn companies? Not convinced.
Whereas Facebook made a big announcement that they were renaming the company Meta. They asked to be called Meta.
Hiring a CFO from the banking industry did make it more difficult to get the free food, though. The cause and effect there was immediately noticeable.
With labor having less power, it's likely that the members of senior management who don't like WFH (for a multitude of reasons right and wrong) will have more sway in the conversation.
It's entirely possible that on the scale of like 30-40 years, this period will be considered a "slump" in how bad covid is, or a time when we were just not considering its effects enough. I don't think this scenario is extremely likely, but I do think our collective uncertainty about long term covid effects on society is still very very high and we should be factoring that into long-term decisions like where to live, housing ownership, etc.
The high confidence people are comfortable displaying about where we are with it is not warranted, imo. It may not be a critical day-to-day concern for most people anymore. But there's no guarantee it can't go back to that state, or with the hindsight view of covid disabilities we'll have wished we kept it as a daily concern during this time.
Plus nursing homes are probably going to remain more lethal than they have been during most of our lives. I think expecting a social change around elderly care based partially on that is astute.