The lockdown has meant many people have spent less and now have money burning in their pockets. I have spent bugger all when locked up inside the house and most of my money is going eating out in outdoor restaurants. No way would I eat indoors even with 10 meters social distancing.
The main worry with a spending boom is if it is done on the credit card. It may be a stupid habit not to to clear your debts each and every month but people do it just to spend on fripperies.