You may not know it, but your tongue may be tied. It is one of many possibilities causing OSA.
I made this: Do I have tongue tie? Self assessment https://do-i-have-tongue-tie.vercel.app/
Didgeridoo playing as alternative treatment for obstructive sleep apnoea syndrome: randomised controlled trial https://pmc.ncbi.nlm.nih.gov/articles/PMC1360393/
Myofunctional Therapy to Treat Obstructive Sleep Apnea: A Systematic Review and Meta-analysis https://pmc.ncbi.nlm.nih.gov/articles/PMC4402674/
Jawhacks on Youtube, discussing Airway health https://www.youtube.com/@JawHacks/search?query=sleep%20apnea