Bluetooth support is still a shit show if you don't buy a laptop that has been in some way developed for linux (if not for your current model, then for a model using similar components). Alternatively, buying a custom bluetooth usb adapter may work but only on a supported distro and only ever with an older bluetooth protocol.

Same goes for WiFi. Good luck trying to get WiFi6 to work properly, ignoring the fact that you have to go out of your way to find an adapter that will even work in linux.