Weird TikTok bot thing

Apologies if this isn't the right subreddit or something, please redirect me to the right one if so 🙏
My friend got one of these weird videos on his TikTok for you page. It had a series of random stock images of various subjects (animals, food, sometimes there are stock images of kids) thrown together with various cryptic codes popping up on the screen, and we're curious on what this is. We looked into it a bit further and found one of the accounts had a description on all the videos, "nature's symphony harmonizing life in the natural world". I looked this up on Google and upon doing so I found multiple TikTok accounts with the same type of video with the same description.

One detail to mention: Throughout the videos, at around the middle section of the video, there is a slightly different looking code than the others. It's usually in lowercase, and contains numbers. Sometimes its shorter, sometimes its longer.

Here's what some of the videos looks like: (https://files.catbox.moe/dvbns6.mp4) (https://files.catbox.moe/sq8cuz.mp4) (https://files.catbox.moe/4ewv49.mp4)
And here are some of the accounts we found: (https://www.tiktok.com/@user1032580141609) (https://www.tiktok.com/@user84615087236080) (https://www.tiktok.com/@user553752024281) (https://www.tiktok.com/@user36903905201570) (https://www.tiktok.com/@user7158606591140) (https://www.tiktok.com/@user71756169885582) (https://www.tiktok.com/@user1498742246711) (https://www.tiktok.com/@user3536852567040)

We're definitely overthinking this and it's probably just some random bot project, but we're lowkey dying to know. Thanks