1. Probably not mate , not impossible but 90% not.
2. Yes that’s true , but like the other comment here , everyone’s circumstances are different. Depending on where you are from they will probably have a tax treaty with Thailand meaning if you pay tax in your own country you won’t pay it in Thailand.
I’d advice you to speak to a proper tax advisor about your circumstances 👌🫡
To transfer a Thai visa to a new passport, you'll need to visit a Thai immigration office with both your old and new passports, along with a copy of the visa and other required documents. The process typically involves having the immigration officer transfer the visa stamp or sticker to your new passport.