According to Counterpoint Research, the smartphone industry in the United States was relatively indifferent in terms of growth for the last quarter of 2021 (4Q2021). Nevertheless, the country's market did see some interesting and possibly unexpected shake-ups, such as the rise of OnePlus' sales over that of Google. Motorola also posted its best quarter on record, with 1 of the best-selling phones over the 3 months.
https://www.notebookcheck.net/OnePlus-surpasses-Google-in-the-US-smartphone-market-for-the-last-quarter-of-2021.596506.0.html
Truly unfortunate given how terrible their CS & devices are these days.... Ironically even a Pixel 2 from 2017 will still operate in terms of longevity than OP options... Ive been a OP user since OP 1 and have had every model up to OP7, and this is just the end of the brand for me, where i now move on to Sony