It is an oversight that we have not included anything about the self/alternate links for each Collection in the normative text. In the Collections resource there should be a self link for each Collection and in the Collection resource there should be self and alternate.
The resolution is:
Add these as recommendations with a note that clarifies that the missing links were an oversight and implementers should really implement the links.
If/when a next version of OGC API - Features - Part 1: Core is published that changes the recommendations into requirements, we can remove them again from the INSPIRE good practice.
As discussed in https://github.com/opengeospatial/ogcapi-features/issues/410:
The resolution is:
I would suggest that we take these recommendations, turn them into requirements, and add those requirements to requirements class http://inspire.ec.europa.eu/id/spec/oapif-download/1.0/req/pre-defined in the INSPIRE good practice.
If/when a next version of OGC API - Features - Part 1: Core is published that changes the recommendations into requirements, we can remove them again from the INSPIRE good practice.