I'm about to put in my notice at work and the reason I'm quitting is like 80% because of a coworker (F30s). We work in IT and working with her is like death by a thousand cuts. I had an epiphany about her a year or so back when I finally saw through her.

• Even though she's got a solid education and 10+ years of experience, she's helpless. She can't do anything by herself. She's on the "have you tried restarting your computer?"-level.
• She blows up easy tasks and pretends they're insanely complicated. If we have a standup meeting she can talk forever about how she's preparing for a task that an intern could do in their sleep.
• She calls consultants for anything and everything. An example is once when she needed to change an email address in a contact field and press Save. She called a 150usd/h consultant for that.
• If she says something wildly incorrect and someone points that out, she's usually like "oh yeah, I'm blaming Mondays :D:D:D"
• Someone asked if we had any issues with a certain remote site. She answered No without even checking. That whole site was down.
• She let an external party into a system with fking admin access because "they asked".
• She "agrees" when someone says something, like she was thinking the same thing. I've actually tested this several times by saying things that are incorrect/stupid and she still agrees with something like "yeah I was just thinking about that"
• She overshares like crazy. She writes things like "Just gonna update my computer, brb" in our team chat (15 people) and then marks the message as 'IMPORTANT!'

Those were 8 points. I have 47 of these! Different scenarios, behaviors and moments that I started to write down as they happened because I couldn't keep them all in my head.

All these are small by themselves, but when they happen every day frustration really builds up. She was away sick for a few months and our workdays got easier because of it, even though our workload increased.

I should probably have addressed this earlier, but it snowballed so slowly that when I realized this, I had so many examples and I was afraid it would seem like I was bullying her.

I was talking with a friend about it and I told him I was planning to tell my boss exactly why I'm quitting, but he said it would be a bit assholish and won't matter to me going forwards anyway.

I would obviously put this forward to my boss in a polite and professional way. But should I even bother? Would especially appreciate answers from people in leadership positions.

WIBTA?