@Keven ***
Yes.
As email from a Thai insurance company says : "If you are enter Thailand. You will need 2 kind of insurance.
1. Covid Insurance : The Coronavirus disease 2019 (COVID-19) insurance plans for foreigners travelling to Thailand,
Will be available to purchase at website
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2. Health Insurance for Special Tourist Visa (STV)".
Both, Thai consulate and Thai pass are only need a second option(a health insurance). Does anywhere written that applying for an STV visa requires 2 insurances? Just to confirm their , this insurance company, claim. Any official link would be much appreciated.