Hi Natalie! From our experience assisting DTV applicants:
Yes, you can enter Thailand as a tourist on
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since your work visa would have expired before your return.
Many of our DTV applicants have followed a similar route.. cancelling, exiting and then re-entering on a tourist stamp before applying from a neighboring country.
We've successfully assisted over 110 applicants in the past 3 months with their DTV visa application so we are quite familiar with the process, feel free to ask anymore questions you have!