Yes, you can use one adapter to connect both Bluetooth and WiFi. (USB or PCIe)
Yes, you can use one adapter to connect both Bluetooth and WiFi. (USB or PCIe)
Skinflint identified two options: Gigabyte GC-WBAX200 and ASUS PCE-AX58BT.
It's worth mentioning that both of them chose to use PCIe for Wi-Fi and USB for Bluetooth. This means they're using one adapter, but it has two distinct connection ports.