Thunderbolt cable plugged via USB on iMac charges iPad Air but not new MacBook Pro
Does the new 2021 MacBook Pro not allow charging via a USB-Thunderbolt cable plugged into an iMac? It works with iPad Air (when iMac is on or off) so no problem with the cable.
I'm not concerned with speed, which I know will be slower, just having it work (for overnight charging convenience). Is it a permissioning thing to allow the computers to be connected? iTunes does not recognize the MacBook as being connected either.
MacBook Air 13″, macOS 11.2