Seasoning not required.
Seems at this point you haven't looked into much detail of DTV requirements.
Here is link
https://www.thaievisa.go.th/visa/dtv-visa
The other option ongoing is living in Thailand is to obtain a non O marriage and subsequent 12 month extensions.
The issue for you with this is international travel.
From your current visa exempt entry you can obtain a 30 day extension + a 60 day extension "to visit wife"
That gives flexibility to when you apply for the non O at local immigration office. Keep in mind there is a home visit for some offices and under consideration period.
Of course you can also obtain the non O at Thai embassies/consulates
I mentioned in another thread that a young guy I met obtained his DTV while in UK and obtained it in 3-4 days.
Like you all his work is online, however he is employed by UK company.
As you are positioned for first category DTV and not "soft power" options, seems good fit for you.
DTV cannot be obtained within Thailand.