every Immigration office is not the same as the others the Thailand...some you can go the same day as you land for a 30 day extension, some you have to wait until you're close to the end of your 45 day stamp...but they all cost the same 1,900 THB for a 30 day extension...good luck
If you get the dreaded 7 day stamp, nothing is stopping you from going out of Thailand and applying for the 60 day SETV or the 6 month METV from either your passport country or a country you hold a residency in…good luck
there is a proposal out there for the 45 days to go until the end of the year…if you paid any attention to the covid extension cycle you will understand that this if it gets passed will happen in the last 3-7 days before it ends
uhh when you leave to get the visa you will do a strategic border bounce to extend the visa…visa class 101 for you….plus you failed to read the ops full comment…always pay attention to details
You can get the 60 day SETV then with a border bounce that will turn into 105 days…you will need ฿1,900 baht and apply outside of Thailand for the visa