well.. we people who are living on planet Earth named 'people catching a cold or something' as Covid-19 pandemic for... probably 3-4 years now. So i do believe why we Earth people close our borders to the people from another planet such as yourself Mr. Polite Man. I think you don't/didn't have this issue on your planet which makes you really lucky.
this makes me believe that you are still here in Thailand which makes your post very interesting.. because seems you didn't checked previous posts about visas... Also this means that your volunteer visa is like.. 3-4 years?! didn't get covid visa?!
here is the fun part for me of your trolling post.. you mentioned you are here (on planet Earth, Thailand) for a long time 15 month volunteer visa.. well this 'people catching a cold or something' situation is going on for 3-4 years, so im wondering how have you managed to stay in Thailand with this 15 month visa so far?
well.. the visa situation is great if you are working, have a wife or any reason which grants you a permission to stay in Thailand without begging or trying to find ways to stay.. So, yes you can get long-term visa.
yes, please do that.