The Intel Arc A370M-powered version of the HP Spectre x360 16 is on its way. While a release date remains unknown, its price has at least been confirmed. The Intel Arc A370M will be available with an Intel Core i7-1260P processor and a 4K OLED display, among other features.
https://www.notebookcheck.net/HP-Spectre-x360-16-US-pricing-announced-for-upcoming-Intel-Core-i7-1260P-and-Intel-Arc-A370M-model.616042.0.html
Bestbuy's website does NOT list OLED display amongst the specs.