If you own real estate it's much harder, especially now that companies have to report their owners and directors.
At the very least PMBs help protect your home address from companies and the public.
Go ahead, do some searches on yourself - I had accurate addresses and poboxes I’d long since forgotten about.
I don't buy into the idea that you can magically hide your home address, this info is already out.
You setup corporations who own your shit. The mortgage and house ownership is handled by the corp. You own the corp, and in some cases there is an umbrella corp that owns other corps.
The corporation then rents you your house. Mortgage and related points back to the corpo address, and you use a PO Box for personal stuff.
Ditto for phones, domains, etc. -- run through the company.
"First, I would never provide my home address on any application or W-9 form. This should only be your PO Box, UPS Box, or PMB address. Your employer likely does not care much about where you live, unless the job has residency requirements, such as a police officer. The IRS does not object to the use of a mail box address. They just want their money."