Just got off the phone with the thai consulate in Savannakhet and they are closed on the 23rd and the 26th next week.
I got a hold of Vientiane, they said they're closed the 23rd but open like normal on the 26th.
TLDR : Answer Summary
The Thai consulate in Savannakhet is closed on October 23rd and 26th, while the Vientiane consulate is closed on the 23rd but open on the 26th. There is uncertainty regarding the operations on October 26th as it is a Thai national holiday, and individual consulates have the discretion to determine their holiday schedules. Some users have confirmed different openings across several locations.