LinkedIn support will also blatantly lie to you when you ask them whether Persona is GDPR compliant and needed to activate your account.
Last year I was trying to setup a business LinkedIn page for SEO purposes, which meant I also had to create a personal account. After being told several times that I absolutely need to scan my ID card with that dodgy app I simply replied that I can't do it due to security concerns. After several weeks they unlocked my account anyway, but I suspect this would not happen if algorithms determined that I actually needed that account to find a job and pay my bills.