it is "incredibly dangerous" to sell stocks after a huge market fall,, page-323

have a look at the balance sheet, if you think they have enough current assets/working cap and liquidity to hold over until normality returns then is reasonable to see confidence. just because there's a reduction in revenue for one half or maybe even a year doesn't mean the company is cactus - especially with the never ending QE that has occurred. IMO most stocks were oversold at the peak of fearmongering for Covid, which represents a good time to buy (usually). there's nothing wrong with the financial markets (unlike the GFC) with this global event. history shows stocks bounce back rapidly after pandemics.

I am taking this opportunity to increase my portfolio to be much larger than pre-covid and in more blue chip stocks.

all IMO. this isn't personal advice.