Appointments back to 1 January 2017 got moved across to G Suite Calendar from Outlook but any attachments on appointments will not have been migrated
Team calendars aren't being automatically migrated unless they are attached to a shared mailbox. Here is some guidance for how teams can create their own team calendars and import any appointments from an Outlook calendar
By default everyone's calendar is set to allow other colleagues to be able to view their appointments, which saves lots of time when trying to arrange meetings
Hangouts Meet links are automatically added to every appointment that has more than 1 person. These can be removed but please be mindful that if they aren't then someone might be planning to join your meeting remotely
Get the most out of Calendar and all the G Suite apps with training guides, cheat sheets, tips, customer examples, and other resources on the G Suite Learning Centre.