here : https://statamic.dev/backend-apis/resource-apis/entry-repository#get-all-entries-with-taxonomy-terms
There is no mention of whereTaxonomy and whereInTaxonomy in the available method table :
but they are documented bellow : https://statamic.dev/backend-apis/resource-apis/entry-repository#get-all-entries-with-taxonomy-terms
(maybe adding each "query" subsection in the right sidebar would also help, by subsection I mean : "Get a single entry by its id / Get an entry by its URI / Get entries by IDs / ... )
I frequently struggle to find how to query taxonomy (moreoer usage differs if we starts from a term builder, vs an entry builder)