I found this article related to MPDI complaining of SCOPUS and WOS via Vilnius Gediminas Technical University Lithuania.
Did they succeed to present SOPUS and WOS vulnerabilities?
See details below:
Paper link:
Article Web of Science (WoS) and Scopus: The Titans of Bibliographic...
3.3. Coverage of Regional and Non-English Literature
Over the years, both Scopus and WoS were repeatedly shown to be biased toward sources that were published in the English language and providing relatively poor coverage of regional literature.
Web of Science (WoS) and Scopus: The Titans of Bibliographic Information in Today’s Academic World
📷by📷Rminta Pranckutėa
Scientific Information Department, Library, Vilnius Gediminas Technical University, Saulėtekio Ave. 14, LT-10223 Vilnius, Lithuania
Publications 2021, 9(1), 12; https://doi.org/10.3390/publications9010012