I also got this week some updates from EBI, their platform (built with PubSweet) feeds all of EPMC and recently has been extended to include preprint workflows. The preprint extensions went live in July. Some info here:
https://europepmc.org/Preprints#preprint-indexing and here: https://plus.europepmc.org/user-guide/preprintfaqs
Some updated screenshots below:
