Meta confirms that it will continue to manufacture Quest headsets while also providing its operating system to select third parties. - Road to VR
Meta Affirms it Will Continue Making Quest Headsets Even as it Offers OS to (select) Third Parties
Meta states that they will continue developing their line of Quest headsets despite third-party companies creating headsets with Quest OS, now known as Horizon OS. Users can visit Road to VR for the full story.
Source: https://www.roadtovr.com/meta-will-continue-making-quest-headsets-horizon-os/