Same here, since updating to Monterey (now 12.4) sleep stops power delivery from the USB Hub, so wake up fails to wake the external HDMI monitor attached to the hub. This is specific to certain hubs it seems, the Apple stock "USB-C Digital AV Multiport Adapter" does not experience the same issue.
It would be fine if there was an official supported Apple product that provided Ethernet, HDMI, etc, but since there is not Apple should try not to break third party ones.
stevemayhew
Users receive reputation points by contributing quality content to the forums.
Posts include post and replies published on the forums.
Post authors can mark replies as Accepted to indicate successful solutions.
Apple Developer Forums admins can mark replies as Apple Recommended to indicate an approved solution