If you are on beta then 5 G won’t work. I did downgrade it to 12 and now software updated and it is compatible. But you will see 5G signals only where the towers are located. By 22nd you will see 5G symbol on phone.in Bangalore it is on testing mode...
Today onwards in batches it will reach phones. First it will go to phones which are having beta, then go to Android 11 phones who did not opt for beta.