Based on
https://www.rohsguide.com/, it seems that RoHS 2 and 3 would both be considered those subsequent amendments to RoHS.
I refer to two items in there:
1) "
RoHS 2 also added Categories 8 and 9, and has additional compliance recordkeeping requirements." So, with this being Directive 2011/65/EU, it is an amendment to RoHS 2002/95/EC
2) "
RoHS 3 adds four additional restricted substances (phthalates) to the list of six." So with this being Directive 2015/863, it builds upon the previous two, and in an additional amendment.
Based on your original question as stated, if a company provides a certificate that explicitly states, "EU RoHS status is declared per Directive 2011/65/EU and its subsequent amendments" and the certification is dated after 22 July 2019, I'd say it is compliant.