Even groups don't exactly dedicate to one idol, at least as far as I've seen. From my experience it's more a matter of "This song has a good BPM, does anyone want to record to this?"

WAIT, was Tae not there to teach the California girls Wota choreo he came up with?

The coolest ngl

Groups? Far and few between. Individually? Yeah, it's honestly just about who they want to show support for.

TORA HI JINZO SENI AMA SHINDO KASEN!

Jewelry

There's nothing stopping you