Need Information about work laptop Privacy

If I'm being given a Macbook Air from my startup organization, and I installed a chrome browser in it.

I use a chrome profile created by my work email for work purposes. In the same chrome browser, I've logged in with personal gmail as well, and other email accounts as well.

How do I know if any of my searches in my personal chrome profile is being monitored or can be tracked by my HR or startup?

How to maintain privacy here?

Is there a way to be sure about it - I understand a lot of people use work and personal email in the work laptop itself.