I’m a complete newbie to this game. My assumption was, I could pair my Garmin speed/cadence to Zwift (macbook), via bluetooth and everything would work. I’m in the trial stage - and I’m not having much success or fun yet!
i am also a complete newbie to zwift but with a slightly different issue to yours. as far as i know, garmin speed/cadence uses the ant+ protocol and not blue tooth. there are dual ones out there such as wahoo but obviously that means more money!