God, can you imagine doing a performance review with someone so useless and so oblivious to it? She's work shy so I dont think she'll make a move to a normal job, I think she's going to try and stretch it out as long as she can even though IMO she's on borrowed time already.
If I was Em and lacking in all the skills she is, I'd take advantage of my position now and look to get into a social / marketing team at a brand that works with influencers. I'd learn from people that know what they're doing, do influencing on the side (and use that fact to explain the reduction in collabs rather than it being obvious that I'm a dick that has burned bridges and my content is too poor to warrant repeat ads), develop an understanding of what my audience actually is and what's important to them to build my engagement, work hard to develop a decent reputation in the industry that has nothing to do with being a cheap beg or sloppy.
Anyone but Em & her 'staff' could turn the ship around.