Right...

And if OP had linked that, it would have made sense.

Instead they linked a pay walled summary of something that people could actually read. Which was pointless.

Edit:

Likely due to OP "headline shopping"...

The one people can actual read would have had to be titled:

Systematic partisan content skews in TikTok during the 2024 US elections

OP wanted something that looked like an academic study but had a editorialized headline...

And if you want that, you can't link real studies, the best you can do is summaries, which are published like a study but isn't abstudy