There are a handful of customisation apps that are only available through the Galaxy store. The ones I use are all Samsung official apps, but the poorly written descriptions on the install pages definitely make me uncomfortable.

It’s like they only intended the apps for their Korean users, and ran the text through Google translate for the English versions.

What would you expect the algorithm to be if not to recommend the apps installed and used the most on their platform?

I don’t use TikTok or FB, but it’s hard to blame them for suggesting apps that they have concrete usage data on saying they are the most used.