Why do you repeat returning to your passport country, all the time? Yes, it´s 100 % correct that you can stay and do not have any problems if you meet up to the demands for the correct visa. Yeah, maybe plus a little bit of annoying document an IO that woke up on the wrong side might ask for. Not a biggie!
Just because land borders open, that will not open up the possibilities for people to get the right and correct visa. That will just lead to misuse of the correct types of visa, and that people believe that the authorities will continue to allow that forever.
A tourist visa is just what it says. For visit the country during the time it is granted for including possible extensions. Not to get one after another to stay forever in a country.
A Non-O visa is for visiting family, work or long stay. Granted for 90 days, with a possible extension 60 days for visit wife or family member. Otherwise they are designed to be extended for a period of 1 year at the time. Not to be abused by 3 month border runs.
Also the multiple entry Non-O visa that many retirees and married persons used to stay long time before, just because the rules and regulations was not followed by certain embassies. They will probably in the long run get shut down, as they should as they fill no function. Regular Non-O with multiple entry document does the trick perfect.
I sincerely hope they will clean up these filthy loopholes in the system. Let´s say like DT! Let´s Make Thailand Great! ????