Microsoft has added 10 known issues under investigation to the Windows 10 2004 release health dashboard. Microsoft has also added nine compatibility holds designed to prevent users of impacted devices from being offered the latest Windows 10 release. Microsoft working on fixes, some workarounds available, with an update to be provided in an upcoming release. Some of the known issues prevent devices from connecting to more than one Bluetooth device, cause refresh rate issues for devices with Intel GPUs, and trigger errors when plugging or unplugging a Thunderbolt dock.
Source: https://www.bleepingcomputer.com/news/microsoft/microsoft-is-investigating-ten-windows-10-2004-known-issues/