> The amount of all nuclear waste ever produced takes up about the space of a football field

No.

Let’s be generous and use a soccer field, which is bigger than a NFL field, at 7,100 m3.

There is about 22,000 m3 of high level nuclear waste globally, according to the IAEA. That’s the really bad stuff. There’s 460,000 m3 of intermediate level (sludge, reactor cladding, etc), and 3,479,000 m3 of low level.

So yeah, considerably more than the space of a football field.

[source: https://nda.blog.gov.uk/2019/08/02/how-much-radioactive-wast...]