Not yet. Reinstalling the OS? It sounds like an overkill.
To me the absence of such options doesn't affect sleep. Instead it's stopping my music play from Hey Siri. Music stops as soon as the screen goes dark. It's actually more annoying than it sounds.
I actually have some ideas for you to experiment should you want to.
Idea 1: Set your Mac to sleep automatically after idling for a period.
It's not what you expected, but should solve the problem.
This gives you a minute count till Mac sleeps:
sudo systemsetup -getcomputersleep
This sets it to 3, which should force the Mac to sleep after idling for 3 minutes. With the lid closed your Mac is sure idle.
sudo systemsetup -setcomputersleep 3
This gives the full potential of this command. With great power comes great responsibility. Don't toy with it!😆
sudo systemsetup help
See here for reference: https://osxdaily.com/2015/02/03/set-or-disable-sleep-due-to-mac-system-inactivity-from-the-command-line-in-os-x/#:~:text=How%20to%20Set%20Mac%20System%20Sleep%20Idle%20Time,before%20the%20Mac%20sleeps%3A%20sudo%20systemsetup%20-setcomputersleep%2060
Idea 2: Something is wrong with your Mac's power management
This doesn't sound good, but is probable. Just imagine the power management falsely gives a status of "Charger connected", Mac would consequently behave accordingly.
Try checking Settings > Displays > Advanced > Prevent automatic sleeping on power adapter when the display is off.
If your current status is checked, the guess is more likely to be true. I would suggest disabling the option to watch for any improvement.
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