@Kullapat ****
You have misunderstood a lot!
There is no 2-month seasoning required for the application to the 90-days Non-O family visa in the E-Visa online system of the Royal Thai General Consulate Munich!
The money just has to sit in the account, and you need to prove the account is in your sole name. . . .
The 2-months seasoning is required for the minimum of 400,000 THB in your Thai bank account when you apply for the 1-year Extension of Stay based on being married to a Thai, inside Thailand . . . .
send yourself some money onto your account using Remittly or WISE, and fill it up a little bit more