If your Evoko Liso device is showing the organizer as the subject for a meeting, then it is most likely due to a setting for your room resource account in Microsoft O365.
Changing this setting for a room resource is done in power-shell, so the first step will be to connect power-shell to exchange online. We recommend to use Microsoft's guide on how to connect:
After you have connected to your tenant through power-shell, run this command to change to setting for the given room; note that you will need to run this command for each room resource account you need to change:
Set-CalendarProcessing RESOURCEMAILBOX -AutomateProcessing AutoAccept -AddOrganizerToSubject $False -DeleteComments $False -DeleteSubject $False -RemovePrivateProperty $false