I've done both and I can assure you that management is not less work.

In fact, you are more likely to work longer hours, and attend meetings at stupid times because that's the only slot you can get the more senior managers to meet at.

However, you sound disillusioned with your work, and maybe you do need to transition into something else. A new challenge can revitalise you, and it doesn't have to be forever.

I've met plenty of engineers who seem to believe that everyone else's non technical role is easy. Keep an open mind, and don't approach new opportunities with a negative attitude, or you will probably remain discontented.