Thanks for all the advice. Completed processing for 1 year visa ... Thai Spouse type.
Reached 8.45am CW for some reason, vaccination certificate was being asked from all foreigners ... all of them. Got through that.
Went to Bangkok Bank downstairs, deposited 100 baht, updated book, took a zerox copy. Went up got L2 token. Gave document and passport. She did not even check bankbook or statement. Just took the passport, stamped full year and returned to me in 20 mins.
Thanks for all the help and advice.
TLDR : Answer Summary
The user successfully processed their 1-year Thai Spouse visa, mentioning the need for a vaccination certificate and the procedure involving a bank deposit and document submission at the immigration office. They reported a smooth experience and received their visa promptly.