The experience will be very similar to what you are familiar with in Outlook today, with support for all the core actions-such as add, delete, edit time and location.
Microsoft just added IMAP support to e-mail, which allows you to keep your e-mail synchronized when using third-party clients. Computers How to set up Mac Mail to use IMAP for. You'd need to export your contacts in a form that Outlook can understand, then import them. To add a Gmail account in Outlook, see Add an email account to Outlook 2016 for Mac. To sync your Gmail account with Outlook for Mac 2016, you first need to add the account to Outlook. However, Outlook for Mac 2016 supports synching with Gmail.
If you are adding Gmail, you will get a prompt within Outlook to sign-in to your Google account. If adding a Yahoo, or other IMAP or POP account, you might be taken to those sites and asked to allow Outlook to access your mail, contacts, and calendars.