If you want businesses to stay shut - or deeply restricted - then proper financial support is required. Otherwise, without income - of some form - at least matching expenditure, they'll go bust, and no-body wants that in the long run. Whether the re-instated furlough scheme on it's own is enough, or whether more support is needed will depend on the sector.
[my little company has work for less than half staff until maybe January, then nothing. We are in a massive workshop with good ventilation, wearing masks etc.
I had thought that one of three possible jobs would materialise soon, but as yet, it looks like they're not happening, Furlough will cover most of my staffing costs after that work finished, but not all of it, but the other costs will steadily overwhelm what's left of my income streams without a new project eg rent, energy supplies, service charges ...]