I think your getting mixed up...
The covid cash wasn't a hand out in top of your usual income, it was instead of your usual income which you weren't able to earn. Therefore those people in furlough were no better off than anyone else. It was the companies that too the hit in productivity.
Fraud cases excepted.
No, really, I'm not getting mixed up at all. I'll explain again using different terms and hopefully you'll be able to understand -
If I have 10 people in a room and I give each of them 10 marbles, then they each have 10 marbles, right?
But what if all the marbles go into a bucket, and then people take out handfuls until there are none left, and then they count how many they have.
Evreyone has 10 still, right?
No... Some people have 6 and some people have 18...
You know that, unless you have 10 marbles, someone else has your share of those marbles given out.
I'm unsure why I have to keep saying this. I've used the water cycle analogy before, and now I'm onto children's toys....
That £600b was a cash injection into the economy. Someone came along with a whole load of marbles and dumped them into the population.
Regardless of who did what then, what those marbles were for, and who just "spent their COVID grant" or whatever, if you don't have your marbles, someone else does.
That's the simple way of looking at it.
We can discuss how the money was injected or whatever, but the long and the short of it is that, unless you have, in your account, be it as cash or assets, an ADDITIONAL 10 "marbles" per person in your household, then those marbles are somwhere else.
With someone else.