It's a subsidiary of Oppo, they just tried different brands to corner the market. OnePlus attracted the purists but money reigns and they thought they had a loyal fan base and started changing. Most people would probably say stick to pixel phones for the stock Google Android experience. I liked my OnePlus 5, it lasted for a long time. Never smashed despite being dropped all the time. Just the usb c port lost its connectivity after a few years and needed replacing.