Hi  I just updated to Windows 11 with the same OS build and had the same issue. My laptop is Dell Inspiron. I found a solution is installing a sound driver downloaded from Dell website. for me, it is this one Realtek-High-Definition-Audio-Driver_6CCVY_WIN_6.0.9147.1_A18.EXE Hope it works for you too.
I have no microphone driverI lose a driver named Intel® Smart Sound Technology (Intel® SST) which windows 10 had I have a problem with driver Intel(R) Smart Sound Technology (Intel(R) SST)) OED   [IMAGE][IMAGE][IMAGE][IMAGE][IMAGE]
Dell and problems with windows 11 22000.100 co release