Can Brazilian children extend their stay in Thailand beyond 90 days while waiting for student visas?

Brazilian children previously enjoyed a 90-day visa exemption until August 17, 2022, but they now face a dilemma regarding their status while awaiting student visas. The school has indicated that processing the student visas could exceed their current visa-free period. The primary options for these children are either to apply for a COVID extension, potentially supported by documentation from the school, or to leave and re-enter Thailand for a new 90-day stamp.