@Terry *******
You cannot renew it for another 5 years from within Thailand. It's a 5 year tourist visa that allows 185 days per entry. When you extend the entry, you are NOT reapplying for a new visa, you already have a visa, valid for 5 years. It's intended purpose is to make money for Thailand. It's effect might be to enable you to run an online business, learn to cook an egg, have dental treatment as a medical tourist, but that's not It's purpose. And digital nomad stuff is just millennial nonsense. They really mean homeless people with money. Or maybe no money judging from some queries.