It is true. The PS2 is the worst example, with so many games lost to disk rot and never digitally available, leading to a particularly poor archival rate.
replyProbably a misinterpretation of “not offered for sale today”.
replyNo, that is "archived in any known library". Source is the Video Game History Foundation.
replyNo. That study states "...whether they have been reissued or are otherwise still available
through their rightsholders.". Takem from the first page of the PDF.
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