The flagship OnePlus 9 series initially encountered a stumbling block on its launch in the US market: it was not compatible with Verizon's 5G service. However, the new Android phones now have a better shot at attracting those who use this carrier, thanks to a new certification to use its bands, as well as those of its pre-pay subsidiary Visible.
https://www.notebookcheck.net/OnePlus-9-series-Verizon-announces-the-phones-certification-for-its-5G-network.529874.0.html