Convenience, I suppose… and that doesn’t solve all of the issues (eg Copilot)
I’m fine with it because I know there’s no management software on this laptop, but yeah it’s a totally different story if I had to use a newer one with SSO and management software
Part of the comp. package is presumably paying for you to endure some level of inconvenience at the company's request. Such as isolating work and personal things on separate systems.
At least that's how it works in the vast majority of companies.