Bluetooth drivers and the firmware on devices suck. Modern Windows with Intel Bluetooth seems to work as long as your devices don’t do weird shit. Broadcom chips are often problematic as hell, sometimes requiring a reboot to work after disconnecting a device.
Linux Bluetooth audio was a struggle for years. Pipewire made it Just Work for me. It’s still relatively new, but I don’t have any complaints, unlike in the Pulse+BlueZ days.