> This is the exact opposite of work vs remote work: if WFH becomes the default, I would expect wages to rise, as the most "experience" provided in the workplace (with nice offices, nice chairs, window view, in a nice campus with amenities like catering etc) will be footed by the employee in a WFH setting

Pocket lint compared to the unavoidable costs of employing someone in terms of monetary and in kind compensation and taxes. Knowledge workers are a lot more expensive to employ than the ancillary capital that goes along with getting the benefit of their Labour.