Can PE visa holders apply for a 60-day COVID extension in Thailand?

I was in a similar situation to you last year. My PE visa was expired and I was making use of a final entry stamp to carry me through to 6 years of stay. This stamp was due to expire early January this year. I’m currently a full time student at university in Bangkok, so asked the university to supply me with the required documents to support my application to request an ED visa in country. I received these documents at the end of November last year and booked my appointment at section C at CW. The ladies that work in that section told me that it’s not possible to move from a PE entry stamp to any other visa in country. They said my only option to get the ED visa was by applying at a consulate outside Thailand. They suggested I get the covid extension instead and sent me to section N. I received a covid under consideration stamp for the same date as my PE entry stamp was due to expire (5 weeks after I applied for the covid extension). When I returned to CW 5 weeks later to close the loop, they issued me with a 60 day extension starting from that day. I was pleased that the 60 days started from the approval date rather than the application date. I plan to return to CW later this month to apply for another covid extension.

NOW as far as IF you can convert to a Non-O visa inside the country from a 60 day covid extension that you got from an Elite visa.. The people who would know that are the officers in Section C-1. <- That is the ONLY section out there that issues in country Non-Immigrant Visas and I wouldn't trust anything an officer from a different section said about whether you can or can't, Especially those officers that deal with elite in Section N ;)

There are ZERO (as in not one) reports out there on the inter-web of someone who got an under consideration stamp for a 60 day covid extension who then went back and were denied.

If they take your application you'll get it. So at least you don't need to worry about that at all