Why remote working throws up a risk of discrimination

The pandemic brought about the largest-ever experiment in remote working, reversing the long-held view that work meant being in an office. Now, from the largest corporates to the most agile small- and medium-sized enterprises, discussions about hybrid working are under way, with offices no longer the default venue. This has prompted questions: what if remote working leads to a two-tier system? And could it end up becoming a form, or a tool, of discrimination?