Are 'Montessori' wooden toys on Amazon actually Montessori?

Largely no, according to the communities we read. r/Montessori and r/ScienceBasedParenting threads repeatedly point out that 'Montessori' is an unregulated marketing label, and many busy-board or multi-activity wooden toys marketed as Montessori would not be considered so by trained AMI/AMS educators. Reviewers recommend judging by the toy itself, single-purpose, realistic, child-sized, rather than the label.