Latest Meta Quest 3 user agents:

User Agent	Browser	Platform
Mozilla/5.0 (X11; Linux x86_64; Quest 3) AppleWebKit/537.36 (KHTML, like Gecko) OculusBrowser/42.3.0.30.53.877587659 Chrome/142.0.7444.243 VR Safari/537.36	Oculus Browser 42	Meta Horizon
Mozilla/5.0 (X11; Linux x86_64; Quest 3) AppleWebKit/537.36 (KHTML, like Gecko) OculusBrowser/42.0.0.56.0.857971513 Chrome/142.0.7444.226 VR Safari/537.36	Oculus Browser 42	Meta Horizon
Mozilla/5.0 (X11; Linux x86_64; Quest 3) AppleWebKit/537.36 (KHTML, like Gecko) OculusBrowser/41.3.0.37.65.835880754 Chrome/140.0.7339.249 VR Safari/537.36	Oculus Browser 41	Meta Horizon
Mozilla/5.0 (X11; Linux x86_64; Quest 3) AppleWebKit/537.36 (KHTML, like Gecko) OculusBrowser/41.2.0.37.54.827157863 Chrome/140.0.7339.249 VR Safari/537.36	Oculus Browser 41	Meta Horizon
Mozilla/5.0 (X11; Linux x86_64; Quest 3) AppleWebKit/537.36 (KHTML, like Gecko) OculusBrowser/41.1.0.33.87.820478557 Chrome/140.0.7339.240 VR Safari/537.36	Oculus Browser 41	Meta Horizon
Mozilla/5.0 (X11; Linux x86_64; Quest 3) AppleWebKit/537.36 (KHTML, like Gecko) OculusBrowser/41.1.0.19.87.813589135 Chrome/140.0.7339.240 VR Safari/537.36	Oculus Browser 41	Meta Horizon
Mozilla/5.0 (X11; Linux x86_64; Quest 3) AppleWebKit/537.36 (KHTML, like Gecko) OculusBrowser/41.0.0.28.37.807559367 Chrome/140.0.7339.207 VR Safari/537.36	Oculus Browser 41	Meta Horizon
Mozilla/5.0 (X11; Linux x86_64; Quest 3) AppleWebKit/537.36 (KHTML, like Gecko) OculusBrowser/40.4.0.0.22.790327484 Chrome/138.0.7204.243 VR Safari/537.36	Oculus Browser 40	Meta Horizon
Mozilla/5.0 (X11; Linux x86_64; Quest 3) AppleWebKit/537.36 (KHTML, like Gecko) OculusBrowser/40.2.0.25.61.795182405 Chrome/138.0.7204.235 VR Safari/537.36,gzip(gfe);GoogleHypersonic	Oculus Browser 40	Meta Horizon
Mozilla/5.0 (X11; Linux x86_64; Quest 3) AppleWebKit/537.36 (KHTML, like Gecko) OculusBrowser/40.2.0.25.61.795182405 Chrome/138.0.7204.235 VR Safari/537.36	Oculus Browser 40	Meta Horizon
Mozilla/5.0 (X11; Linux x86_64; Quest 3) AppleWebKit/537.36 (KHTML, like Gecko) OculusBrowser/40.2.0.10.61.784625537 Chrome/138.0.7204.235 VR Safari/537.36,gzip(gfe);GoogleHypersonic	Oculus Browser 40	Meta Horizon
Mozilla/5.0 (X11; Linux x86_64; Quest 3) AppleWebKit/537.36 (KHTML, like Gecko) OculusBrowser/40.1.0.6.64.776937802 Chrome/138.0.7204.179 VR Safari/537.36,gzip(gfe);GoogleHypersonic	Oculus Browser 40	Meta Horizon
Mozilla/5.0 (X11; Linux x86_64; Quest 3) AppleWebKit/537.36 (KHTML, like Gecko) OculusBrowser/40.0.0.8.33.770773999 Chrome/138.0.7204.168 VR Safari/537.36	Oculus Browser 40	Meta Horizon
Mozilla/5.0 (X11; Linux x86_64; Quest 3) AppleWebKit/537.36 (KHTML, like Gecko) OculusBrowser/39.4.0.0.23.764413373 Chrome/136.0.7103.177 VR Safari/537.36	Oculus Browser 39	Meta Horizon
Mozilla/5.0 (X11; Linux x86_64; Quest 3) AppleWebKit/537.36 (KHTML, like Gecko) OculusBrowser/39.3.0.6.46.763586546 Chrome/136.0.7103.177 VR Safari/537.36	Oculus Browser 39	Meta Horizon
Mozilla/5.0 (X11; Linux x86_64; Quest 3) AppleWebKit/537.36 (KHTML, like Gecko) OculusBrowser/39.3.0.11.46.766180192 Chrome/136.0.7103.177 VR Safari/537.36,gzip(gfe);GoogleHypersonic	Oculus Browser 39	Meta Horizon
Mozilla/5.0 (X11; Linux x86_64; Quest 3) AppleWebKit/537.36 (KHTML, like Gecko) OculusBrowser/39.2.0.6.62.756685193 Chrome/136.0.7103.177 VR Safari/537.36	Oculus Browser 39	Meta Horizon
Mozilla/5.0 (X11; Linux x86_64; Quest 3) AppleWebKit/537.36 (KHTML, like Gecko) OculusBrowser/39.2.0.0.13.749833482 Chrome/136.0.7103.168 VR Safari/537.36	Oculus Browser 39	Meta Horizon
Mozilla/5.0 (X11; Linux x86_64; Quest 3) AppleWebKit/537.36 (KHTML, like Gecko) OculusBrowser/39.0.0.12.29.746328817 Chrome/136.0.7103.149 VR Safari/537.36	Oculus Browser 39	Meta Horizon
Mozilla/5.0 (X11; Linux x86_64; Quest 3) AppleWebKit/537.36 (KHTML, like Gecko) OculusBrowser/39.0.0.0.2.738300450 Chrome/136.0.7103.125 VR Safari/537.36	Oculus Browser 39	Meta Horizon