Missing Energy Saver icon under my system preferences. System times out after a few minutes of inactivity.

My MacBook Pro will automatically time itself out in 3 minutes, when there is no activity. All the settings that are available to me in the system preferences to prevent timing out, were maxed out. The last apple representative, tried safe mode in addition to verifying the setting in screen share. We sat a few minutes then the screen would appear informing I have less than a minute to resume activity or it would log me out completely. The Apple representative had no clue on how to proceed. That’s when I was escalated. With the same results, other than when we, under screen sharing guidance, that she found the actual timing out program entry of 3 minutes, in system preferences. She was not aware of this. That is when she told me to contact Apple about this problem, since she does not have the capability to change the timing out program sequence.

I put this in forum, to see if anyone else has experienced this problem. She did make one suggestion, go to a backup prior to Big Sur and reinstall from there, to see if my energy saver icon returns and if the timing out stops. - unfortunate I will not do that

Thank you.. you should apply for a job at apple, because there technicians couldn’t figure this out. So, tell me what happened to the icon, energy saver.