Similar to https://community.teamviewer.com/English/discussion/109545/wake-on-lan-doesnt-work-on-ubuntu
That post was from Jan '21, and nothing seems to come of it.
I have everything tested and set up on 3 devices. 2x Win10 desktops, connected with Ethernet cables, and 1x Ubuntu laptop over WiFi.
I can use the second desktop to "Wake up" the first desktop (the remote machine), but there is no "Wake up" button on the Ubuntu version of the client.
Windows are both running 15.36.9 and Ubuntu is running 15.36.8, however the UI is noticeably different between the 2.
Both Windows computers have "Wake on LAN" enabled in the network adapter properties, and the BIOS (so theoretically I can wake either up). The Ubuntu laptop does not; is it a requirement even though the laptop will never need to be woken up remotely?