The Meta Quest App has been renamed to 'Meta Horizon' in anticipation of third-party operating system licensing. - Road to VR
Meta Quest App Now Called ‘Meta Horizon’ in Preparation for Third-party OS Licensing
Meta has introduced a new logo and name for its XR content store, now called 'Meta Horizon.' This change is part of a broader strategy to open the Quest operating system to third-party headsets for the first time, with partners like Asus, Lenovo, and Xbox. Although the Quest name will continue, the rebrand signifies Meta's preparation for future developments. For more details, visit the full story on Road to VR.
Source: https://www.roadtovr.com/quest-store-becomes-meta-horizon-store/