LG licensed other brands to use WebOS for their products since 2022. But the device detector automatically gives LG as the brand rather than the actual brand itself.

Relevant information:
https://www.lgnewsroom.com/2021/02/lg-expands-webos-smart-tv-platform-to-tv-brand-partners/
https://www.theverge.com/2021/2/23/22298058/lg-licensing-webos-other-tvs-rca-polaroid
https://onsitego.com/blog/lgs-smart-tv-os-webos-licensed-200-tv-brands/

Example 1:
User Agent:
Mozilla/5.0 (Web0S; Linux/SmartTV) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.106 Safari/537.36 HbbTV/1.5.1 (+DRM; LGE/ATMACA/SUNNY; SN50FMN242-0246; WEBOS5.0 04.50.60; W50_K6LP; DTV_C20P;)

Actual Brand: SUNNY
https://www.sunny.com.tr/sunny-50-frameless-uhd-4k-webos-smart-tv-sn50fmn242/

Example 2:
User Agent:
Mozilla/5.0 (Web0S; Linux/SmartTV) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.88 Safari/537.36 HbbTV/1.6.1 (+DRM; LGE/ATMACA/AXEN; AX32DAL540-0276; WEBOS22 03.34.35; W22_K8AP; DTV_C22L;)

Actual Brand: AXEN
https://www.axen.com.tr/axen-32-inc-80-ekran-hd-ready-webos-2-0-smart-tv-ax32dal540/

Example 3:
User Agent:
Mozilla/5.0 (Web0S; Linux/SmartTV) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.106 Safari/537.36 HbbTV/1.5.1 (+DRM; LGE/KONKA/DYON; SMART-32-X-EOS; WEBOS5.0 04.40.70; W50_K6LP; DTV_C20L;)

Actual Brand: DYON
https://www.amazon.de/-/en/Triple-Netflix-Remote-Gesture-Control/dp/B09L1N69CP?th=1

Example 4:
User Agent:
Mozilla/5.0 (Web0S; Linux/SmartTV) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.106 Safari/537.36 HbbTV/1.5.1 (+DRM; LGE/SILICONPLAYER/ONVO; OV50500; WEBOS5.0 04.40.70; W50_K6LP; DTV_C20P;)

Actual Brand: ONVO
https://onvo.com.tr/urunler/televizyonlar/onvo-ov50500-ultra-hd-webos-smart-led/