Ex-employer bullying

Looking for some thoughts 💭 on how to go about an ex-employer situation. Few major points For simplicity sake let’s call my ex-employer Company A - which is staffing agency who was my w2 employer. Not like Deloitte or Accenture where you have a manager in consulting -client relationship type roles. This company sourced me, simply ran my paycheck. - I worked through an company A and was placed in one of the FAANG and worked for about 6 months only - Now I am at much much senior role in my new job in a small company. Was able to secure this role thru some serious networking. While quite hectic some days I value my current employer. Enjoy the autonomy and like what I do. Been in this role over 6 months now. - Company A first threatened me via email and phone, I didn’t budge and has come with a legal letter where they are asking me to remove FAANG company name from my linkedin and threatening saying I broke confidentiality agreement. I haven’t. publicly thru linkedin or to my new employer …..shared any project details except “client” name and team name which in my opinion is general info and my lawyer’s opinion by law also very general and not confidential. I got legal opinion further and my lawyer reviewed my contracts, I have been advised that under California law this company As ask is way over broad and legally they cannot restrict me to use “client” name in my experience. I am no where calling the “client” my employer. Company A - is saying by using the Client name in experience section in this case on linkedin and using their name it creates a perception in viewers mind that I was directly employed by the client, FAANG in this case. None of my contracts say I can’t use client name. My lawyer has made pretty solid arguments so far. Wanting to know if anyone has delt with this kind of situation before? I don’t understand why does my ex-w2 employer care so much about what I put on LinkedIn. I have 10yrs of deep work ex in a fintech domain TC250k #tech