Intuit does not get it at all!
I have been using quickbooks since 1995. I have more than one company that I use it for, plus a trust account and my own personal account. I ran payroll on one company years ago but that was through ADP. About 4 years ago I added payroll to another S-Corp and my CPA ran it - it was through Intuit. I had a login for that payroll system and it all worked great. I entered the information from that into my own Quickbooks for the company.
This was all Quickbooks Pro Desktop - I NEVER connected any banks or internet services to that computer or to Quickbooks. I work in internet security and I KNOW BETTER!  MY DATA - MY FINANCES - MY COMPANIES.
Then comes the NEW QUICKBOOKS DESKTOP... all kinds of hoops to get the new version set up on Windows 10... and suddenly I need to log into my intuit account... WTF... I can't... I jump through hoops - OH GUESS WHAT? Intuit decides I must ONLY HAVE ONE login. THIS was a long process to figure out but it ended up that INTUIT decided the payroll account for one company was now linked to my other company...
THIS GETS STUPIDER
I cannot remove dead people that used to work for me because they no longer have email addresses or phone numbers and cannot therefor be removed as users. I cannot remove an old bookkeeper for whom I had another license for because SHE DOES have an intuit account for the company she currently works for and neither of us want to screw anything up with either of our accounts.
I BOUGHT DESKTOP QUICKBOOKS TO DO MY OWN BOOKKEEPING - PERIOD!

I do not want Intuit to have my business information.
I do my taxes.
I buy my software.
I protect my data.

How can Intuit
NOT understand this?