Relevant, from June 2023:
https://immigration.net/2023/06/15/the-coming-apocalypse-for-employment-based-immigrantswhat-the-current-backlog-in-perm-labor-certifications-dol-prevailing-wage-requests-and-pending-and-approved-i-140s-means-for-future-visa-b/
The math gets us to the hard truth, there are will shortly be an additional 710,257 pending EB-2 and EB-3 immigrant visa applicants waiting for visa availability (not including any EB-2 NIW direct filings. Added to the current number that means we have over 1,800,000 million people in our EB-2 and EB-3 employment categories, many of whom are already working in the US, whose US employers have proved they are not taking jobs from US Citizens, or are persons whose immigration is in the National Interest. Even if we lifted the per country limit, the wait translates to a 20 year wait for everyone filing a prevailing wage today, with tens of thousands more being added each year.