One of DDs group projects involved adapting computer game technology to medical use. I was describing some of the challenges DD had faced (time zones, key parts delayed by Chinese New Year, never having met her colleagues etc) to a computer games designer I know. He was impressed. He felt the whole experience would prove absolutely perfect for the modern workplace. He also felt it is one of the real strengths of British higher education that we expect students to work together and to solve problems. His firm has clusters spread across the world. There are advantages, but also big disadvantages. For example he found Zoom calls more exhausting than meeting face to face.
The same for students. some things will be better, some worse. But they will be more employable if they adapt to the demands of the day, than if they hanker after the familiar.
We have all had to learn how to do it. Even a boomer like me whose evening course is now on-line. Not as much fun, and no glass of wine or a chat. But great that I can be out of London and still attend, or watch on catch up. I still think Universities, or at least the one DD was at last year, have coped well. It was not the experience she wanted, but I don't think she feels that her education and knowledge is any weaker as a result. (Disclaimer: obviously this is not true everywhere. A fifth year dentist was telling me that he will be getting additional supervision after graduation as his year missed out on a lot of practical learning.)
And yes there is lots of contingency planning for wifi failure. Both from the University and presumably by the student. (A couple of neighbours are on standby to take DD in if ours goes down, plus plenty of data, in case it fails half way through. The exam is downloaded at the start, and then time is allowed to up load, so scope to make an urgent call for help if the upload goes wrong.) DDs one concern was that her course tried to minimise cheating by adding to the time pressure. Not great for someone with slow processing speeds. But again the multi choice format, which is often used, suits her.
(And to lower the tone, an exam seems to have been bad if a "stress poo" was needed in the middle. As I said, there are some advantages to being on-line.)