VO2 Max not working on Apple Watch Series 6

Not a question. Hopefully a solution. I called Apple tech support and was told I had to log about 4 workouts for VO2 Max to start working. Did that and it didn’t work. Did do some things found earlier in this forum. Not sure which actually worked or if it was a combination because I did all 4 at the same time. 1. Open Apple Watch app on phone, scroll down to privacy, click on it and scroll down to reset fitness calibration. Click on that( will ask are you sure) click reset fitness calibration. 2. Right before workout turn on airplane mode on phone and on Apple Watch. 3. Tighten watch on arm until it is snug. 4. Open activity app on watch and do either the outdoor walk, run or hike. Click end after workout complete. Then turn airplane mode off on phone and off on watch. Did all this and got my first VO2 Max reading in 6months. The next time I went out left airplane mode off on phone and watch to see if it would work without it and yes it does. I have been getting readings since as long as I open activity app to log workout. This is what worked for me. I hope this helps someone else.