The panel is available in every WZ game. If you want it next to the map, just open it up on turn 1 and dont close it afterwards. That doesnt work on mobile, but you shouldnt play big maps on mobile anyways.
EDIT: to get it to open up by default, create a userscript that runs on all https://www.warzone.com/MultiPlayer?GameID=?
Have it run the following code:
Edited 1/18/2022 23:55:31