After playing a bunch, I realize the only way to play this game is to utilize the “Select all (building type)” hotkeys as there is no hope in trying to mix buildings in one control group. I’ve dedicated like 7-10 hotkeys just for this which brought my hotkeys for control groups down to 5 with no camera hotkeys.
Something similar to this AOE Hotkeys - Google Sheets
Another bug found: Hotkeys are completely broken - #4 by Davidj361