Do you have any numbers to back this up?

Because economist disagree.

1. Can I get a citation on this? I searched and found nothing. But also the comparison is hard because the COIVD-19 lockdowns were much more severe. Like we had a complete shut down, most of the spanish flu there were few actually "lockdowns" as most businesses were allowed to stay open, it was more schools and public institutions were closed. They even still held parades and public celebrations. Additionally they were shorter in length. If "length of lockdown" is a good indication of how strong you come out economically on the other side of a pandemic, then we should have been way better off. Additionally, the economy has rebounded very weel, it has just come at the cost of inflation.
2. This is untrue. Plenty of inflation was due to disruptions and monetary policy during the pandemic. It was almost a deliberate choice by the fed to pump money into the economy, to keep people employed, at the cost of inflation, as they figured that was better than a huge economic downturn, or even another depression. Sure, some of it now is corporate greed, as they realized they could raise prices and people would still pay, but it's by and large due to policies during the pandemic.