I've lived in Thailand for 22 years.
The governmental system doesn't bother me much. I haven't seen any advantage for the average Thai whether they have a democratically elected government or one which gained control by force or some other way. Both types seem to mainly be out to better themselves and only do what is necessary to keep the general public under control. This is no different than any other country I know of, including my home country, the USA.
The answer to most of your other questions depends a lot on why you've chosen to live in Thailand. That answer, for me, is to live peacefully on my own terms and within my means, and to be able to limit my contact with greedy, narcissistic people. Because of this, I would not like to see an increase in the influx of tourists or more foreign residents be they Asian or "Farangs."
So, whatever events occur that limit that, be it a coup or COVID-19, is fine with me.