Hi @bbddg,
Thanks for the feedback!
Here is more information on the differences between the “Send Email Invite”, “add members to team” and “Team Invite Link" buttons: https://docs.mattermost.com/help/getting-started/managing-members.html#inviting-team-members.
We would love to hear more about this in our feature proposal forum. You get 10 votes there, and each one influences the future of the project: https://mattermost.uservoice.com/