I applied on Oct.1 2022 for LTR-WFT. The process took 7 weeks, mostly due to me having to renew my health insurance. Getting in touch with BOI can be somewhat of a challenge, but once you reach one of their officers, they are always helpful and courteous.
Since I have been in TH already many years, all my non-english documents have already been translated in the past. Once you get them certified they can be used for years.