23In that regard, it is settled case-law that the equal-treatment rule laid down in Article 45 TFEU and in Article 7 of Regulation No 492/2011 prohibits not only overt discrimination by reason of nationality but also all covert forms of discrimination which, through the application of other distinguishing criteria, lead in fact to the same result (see, to that effect, judgments in SALK, paragraph 25; of 13 March 2019, Gemeinsamer Betriebsrat EurothermenResort Bad Schallerbach, C‑437/17, EU:C:2019:193, paragraph 18; and of 8 May 2019, Österreichischer Gewerkschaftsbund, C‑24/17, EU:C:2019:373, paragraph 70).
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