Dell has a few. I have the U2723QE. It reliably wakes up my Windows desktop but waking up my Macbook is a crapshoot. I'm pretty sure the issue is in Apple's software, not the docks.
I've been following this issue pretty closely, and it's not only Macs that have this problem with dell monitors, if you check out the dell support forum there are various PC users reporting the problem even dell precision users. Also there are various other problems with the monitor firmware like it crashing and needing to be restarted etc.
Additionally, if you look at the firmware updates they published for the successor U2725QE you'll see things[0] again not specific to Macs like
* resolves monitor wake-from-sleep issues; and
* resolves daisy-chained monitors not waking from standby;
Which may not be exactly the same bug, but probably is & it shows the problems are getting addressed in Dell's own firmware
I've been following this issue pretty closely, and it's not only Macs that have this problem with dell monitors, if you check out the dell support forum there are various PC users reporting the problem even dell precision users. Also there are various other problems with the monitor firmware like it crashing and needing to be restarted etc.
Additionally, if you look at the firmware updates they published for the successor U2725QE you'll see things[0] again not specific to Macs like
* resolves monitor wake-from-sleep issues; and * resolves daisy-chained monitors not waking from standby;
Which may not be exactly the same bug, but probably is & it shows the problems are getting addressed in Dell's own firmware
[0]https://www.dell.com/support/home/en-us/drivers/driversdetai...