It varies from company to company. Some were able to move quickly to get their staff working from home, others it took time. I'm aware of one company in the UK for example that found it needed to order and build over 10000 laptops to facilitate home working. That takes time.
Having said that, most should be ok by now in that respect. Whether as companies they have the ability and culture to manage home and remote workers is another thing entirely. If they are not doing what you need them to do, take your business elswhere