There needs tobe questions asked for future pandemis but everyone panicked and trampled over each other to get ppe. Germany bought 1.2 billion of defective masks in the first month, France 1.5 billion on defective gloves. Here's an article on different European countries scrambling for equipment and getting faulty stuff Holland 600,000 unusable masks for example
https://euobserver.com/health-and-society/147958
It's incompetent but I don't think they deliberately thought the Chinese masks would be poor quality. It seems ridiculous that they can't claim the money back.
The last two on the list no one is to blame for. They bought too much but would have been criticised if vaccines didn't work and their wasn't ppe. The 4.7 billion, what are they meant to do with depreciation of goods post a working vaccine. Some were reluctant for mask wearing to stop so it could have been more if they wanted it. It's similar to those who complained about testing ending but also complain about the billions spent on testing.