I think that somewhat depends upon which VPN you’re running, as well as the computer, operating system, etc. Hasn’t been much of an obstacle to me. Easy to turn VPN off and on, for those brief times you choose to.
Interestingly, mylife.com seems to be one of those sites that really doesn’t want you to log in with VPN on. And this forum allows you to log in, but doesn’t seem to accept posts through VPNs .
Here is a list of sites that you can use to look up people online, including yourself. It also has notes of how to get yourself removed. Some of these sites want money to remove you! Total scam that I am sure a mean letter from a law firm would make them remove it, but still that costs money.