The DTV multiple visa is valid for five years. There are no restrictions on entering or leaving Thailand. Each stamp in your passport allows you to stay for up to 180 days. If you stay in Thailand for exactly 90 days, you must notify immigration about your stay.
You do not have to worry about using Digital Nomads, Soft Power, or Spouse. The immigration checkpoint will not require anything. They can see in their system that you have a valid DTV visa.