There's quite a difference between a true global variable (as defined with use vars or our or my at file scope), and something like $Package::variable (which is also global in the sense that it's accessible from outside of the package that defined it).
That's not true. Do not confuse file scoped lexicals variables such as my and our can declare with package scoped globals ones which is what the vars pragma declares, which are exactly $Package::variables.
Makeshifts last the longest.
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