MS Teams blocking screen lock / idle timeout occurring

Currently running Teams version 1.5.00.31168 on Citrix VDI , Citrix VDA 19.12 LTSR CU5 

 

In the past few weeks a few users have reported that the VDI screen saver / lock is not occurring as expected. It normally occurs after 15 minutes of idle time. The BYOD is locked, but un-unlocking the BYOD session still has the VDI desktop unlocked 

 

Why do i think its teams ?  Well, I exited teams and the problem seems to have gone away. 

Large environment and need an explanation what might have caused this. 

I know media player has a setting "Allow Screen saver during playback" 

Is there an equivalent setting in teams ? ( i can see anything obvious in the teams interface ) 

Is there a setting that the organizer can put on a meeting that may hang around afterwards (seen posts suggesting people are complaining the opposite, the meeting continues after a lock is enabled ) 

Don't have access to the Teams admin center, so can't see if there are any settings there.