In the latest firmware update, Microsoft stated they were aware of a pesky issue where the controller for Xbox Series X/S would randomly disconnect for no reason.
“We’re aware of an issue in which some Xbox Series X/S controllers are losing connection with the console.
While the Xbox Series X/S is technically available now, both systems are seeing issues with stock which are expected to continue throughout 2021.
Last year saw Microsoft launch two separate new generation consoles with the Xbox Series X and Series S. Overall, it seems the Xbox Series line saw a successful launch, though stock issues have potentially hampered it somewhat.