[xattt]

You mean you don’t snap on the magnetic puck while the watch is still on your arm, cable dangling, while you hold a power bank in your hand?

[jerlam]

Does the Apple Watch actually support charging in the middle of a workout?

The first generations of the Garmin Fenix actually supported charging in use with a very overcomplicated charging cable: https://youtu.be/S9haDnwIuSQ

[xattt]

It does not. As soon as you take the puck out, you have to input your pin again.