@Mike *******
I don't think you will be able to do the 65,000 starting out, need to start with the bank deposit and then can move it later, after the first 12 month extension. Usually the money needs to be in an account in your name, not a company.
It may depend on whether you get the O or O-A. Advantage of the O is no health insurance required but it's only a 3 month visa. Then you need to extend in country and for that you need the 800k deposit.
O-A gets you one year and you can leave and come back at the end, for almost two years. Possibly if you start the 65k transfers immediately and keep them up for 12 months some immigration offices might let you have your first extension on that basis, if you were O-A. You need specific Thai health insurance in that case.
Residency is not the same as permanent residency, I don't think you necessarily need PR. Consulates will generally process anyone legally in the country who isn't a tourist. The thing they say about not accepting a specific temporary residency I think relates to the status Ukrainian refugees are on.
What visa are you on for Portugal? I'd at least ask the embassy, with what proof you have of your residency.