Surely this is because more people worked from home and justified buying pc items as they had more disposable income... And worked on their pcs.
It's not because people were rushing to game on their pcs like never before.
People have been posting "the death of PC gaming is nigh" threads on here every 6 months for at least the last 10 years... 10 years on and PC gaming spending has increased EVERY year, not just COVID year.
From what I can find, PC gaming spending outpaced the increase in console spending.
So no, the OP's assertion that people are leaving PC gaming to switch to PS5 does not seem to bear fruit.
I mean, quite obviously you expect console sales in the 1st year of release to be good - PS4 sold 7.6m units in the first 12 months, PS5 has sold 7.8m... so 200,000 PC gamers switched to PS5 from PC? No it doesn't even mean that. The 2 figures are virtually identical, not exactly a massive increase on the console side.