Short answer in Jain view:

• On Girnar, the place traditionally linked to Neminath (Aristanemi) is the Neminath Jinalay and the sacred footprints of Neminath on the climb. Jains revere these footprints as the kevaljnan site of Neminath, especially at Sahasavan and the later tonks on Girnar. This is the core Jain belief about Girnar’s sacred spots. ( jainknowledge.com)
• The temple atop Girnar’s peak is today associated with Dattatreya by some Hindu traditions, and a Dattatreya idol temple is present there. In Jain sources, this temple is not the principal Neminath shrine, and the footprints of Neminath are the primary Jain holy site on Girnar. The two traditions contest ownership and worship rights at that top site in modern times. ( en.wikipedia.org)
• There are different viewpoints between Digambar and Śvetāmbara communities about the exact sites and footprints along the ascent, but the central Jain belief remains that Neminath attained moksha on Girnar and that his footprints at Sahasavan and along the ascent are sacred. ( jainknowledge.com)

If you want, I can point to specific Jain Knowledge pages that describe Neminath’s life, the Girnar temples, and the Dattatreya dispute from a Jain perspective. You can read more here and here and about the Girnar context in related Girnar temple pages.