One of the defining developments of the pandemic has been the rise of the Zoom call. Family catch-ups, business meetings, and virtual pub quizzes have all been held on the popular video conferencing platform – with a marked effect on that company’s bottom line. Zoom says it’s had a “very strong” start to the year, and profits are up from $27m (£19m) in 2020 to $227m (£160m). But analysts are warning that Zoom could struggle to stay relevant as vaccines continue to roll-out and social distancing ends.