Re: Can anyone* see my web requests if I use HTTPS?
Absolutely true. Where I work this is specifically mentioned in our employment contracts (or at least in a policy doc that is deemed part of our contract). Effectively they MITM every HTTPS because they can set whatever root certificates they like on our workstations. They have legitimate reasons to do this but as a consequence get to sweep up all such data. I'm also presuming that any legislation will at least attempt to be sufficiently broad that they can get such logs from employers too.
If you don't like this then you should only browse personal stuff at home. I nearly added "or on your smartphone" then I laughed at myself.