Aside from the added library and configuration requirement steps, I decided to take steps to make the movie sync on any resolution. Ultimately this meant sacrificing the cat but the default player character has the same hitbox anyway.
Edit: To clarify, the dependencies listed are part of other libraries. Invoke sudo apt-get install libc6 lib64gcc1 libstdc++ in the terminal in order to obtain them.
#58552068933195345 - YHtWtG TAS (800x600 resolution)
Theoretically completes the game with a sub 5 minute IGT. I say theoretically because getting this movie to sync on my libTAS interim build so far has been a nightmare (although it may be partially because it's 12AM as of the time I'm writing this). I'm posting it in userfiles to see if anyone can get it to sync on the official release build.
Here's the best I can recommend to try to get the movie to sync: do NOT use fast-forward!
TAS done on the DRM-free version of the game, but should theoretically work on the Steam version as well.
EDIT: Just casually got it to sync today on my first playback attempt. IGT is 4:58. Also I forgot to mention this TAS plays as the cat since the larger hitbox has its fair share of advantages (most important of all being in the Hollow Knight room).