Based on the title of the thread "Is work from home or caravan over?" I don't think it is over.
A not insignificant number of organisations have discovered that Work From Home (WFH) is actually working well for them, and thus despite the reduction in c19 restrictions they are maintaining the new working practice.
Obviously it can't apply to many physical types of work, but for a large part of the services sector, WFH is likely to become standard employment.
Lets be clear, where WFH is being continued its only becasue it seems to make financial savings for the employer. Smaller offices means lower business rates, less heating, lighting, communications, janitorial and security services. Even if the employer does make a contribution to the employees to cover services used at home, it's generally at a lower tariff than the cost for running a commercial office.
I am not automatically against this change, as there can be benefits to the employee, for example cutting down on the time and cost commuting, reducing the cost of refreshments, And some intangibles such as having the house occupied might reduce the risk of being burgled, more time to spend with the family.
But there are some potential downsides. WFH for some means they can't establish distinct work and home environment's. Work and life can beging to blur. This can impact mental health. Being isolated from simple human interactions can prevent the bouncing of idea's or getting support from colleagues or senior staff. This can be especially difficult for people who may already have mental health issues.
I think the Department for Work and Pensions should bring forward legislation that requires employers' to show they have evaluate dthe WFH situations with a view to the wellbeing of the employee, and have processes to support the employee should any situation prove to harmful to the employees wellbeing.