I've just got the covid extensions of 60 days starting from the day of request at the Temporary Visa Extension Center at Nonthanburi after a "under consideration period" and coming back the day after the expiring of my last TR extension of one month.
Thanks everyone for the support and especially Tod!
TLDR : Answer Summary
The user successfully obtained a 60-day COVID extension for their visa from the Temporary Visa Extension Center in Nonthaburi after a waiting period, right after their previous TR extension expired. They expressed gratitude for the support received from the community.