Account switching is supported in some of the official clients, but not all. Also, multiple accounts means multiple verified phone numbers. You can’t reuse the

Account switching is supported in some of the official clients, but not all. Also, multiple accounts means multiple verified phone numbers. You can’t reuse the same phone number between accounts, unless you want to verify it every single time you switch accounts. And they don’t allow google voice or voip numbers. They clearly don’t want you using multiple accounts.