The naming pattern of the files is following the one of awemer, a Python tool for scraping TikTok videos in source quality if possible, courtesy of chan-like boards :HACKERMANS:
/ttg/ - Awemer Thread #1
The naming pattern is → "username YYYY-MM-DD video_id"
For the stuff that I gather from other people, where the filenames are sometimes kinda random, I follow my own naming pattern. If the date isn't available even in the metadata, then 'YYYY-MM-DD' is added instead. Also, if the video id isn't available in a filename itself, "©blahblahblah" for source quality videos, or "vid_blahblahblah" for non-source quality videos is added instead. All this extra information can be viewed via MediaInfo and such tools.
This Python tool utilizes TikWM to fetch the source quality video files, so if it returns a video file with an '~sd' suffix, it means that TikWM itself couldn't retrieve the source file. TikTok changed something (in its code) at some point, thus making older videos harder to be retrieved in source quality.
https://tikwm.com/
https://tikwm.com/originalDownloader.html
PS She seems to have two to three accounts:
• paaularruizz2
• paulitaquepesadaaa
• paaularruizz → It could be her old one, as there are videos in paaularruizz2 with that name stamp; she probably downloaded her content from this account for reuploading to the new one. Also, this account solely follows paaularruizz2, as well. Whatever though, it's empty

epeLaugh: