Personally i'm not leaving with the volunteer visa December move on to 2 month extns via ED in Bankok. They didn't specify what it's called..just that my passport should be with them by the 13th if my visa expires on 22nd Dec, price 10,000. One year other ED visa 50.
The issues atm is still also supply...not enough supply for some people in BKK might be waiting until Jan/March for their 1st vaccination. As farang also waiting on first jab maybe 1-2 weeks from now.