You also have to remember that there's no such thing as "money" - it's just a measure of wealth RELATIVE to other countries, hence the exchange rates rise/fall when one country does better than another.
If ALL countries are being hit by Covid to similar extents, then no country does better/worse than others, so ultimately each country's "wealth" shouldn't change. The real killer comes when some countries are effected more/less than others, and, when some countries come out of Covid better/worse than others. That's when exchange rates, asset values, etc will strengthen/worsen.
As long as the UK isn't being affected drastically more than our main trading partners, and as long as we come out of Covid at a similar time, and similar speed, to our trading partners, we should be OK and should avoid complete financial catastophe. We've basically got to hope that other countries do just as badly as us, and are borrowing similar levels of debt to pay for it than we are.
Obviously, that's "MACRO" level, and at micro level, then yes, some individuals, some businesses, etc will be affected badly, some will have benefitted, hopefully most will be pretty neutral.