Is it required to stay in the country while waiting for DTV approval in Phnom Penh?

Can you lmk how long it took once approved and if your doing soft power?

It's a requirement to stay until approved

Stay in the country until approved or at least don't enter Thailand until approved.

Required

It's required

Stay in the country until approved.

It's required. Many embassies do follow-up checks to make sure you're still in the country days after you apply. And if they find out you left, your application is rejected with no refund.

It even tells you on the application that you must stay until your application is processed.