I really don't want to make a Microsoft account but many job interviews are held on Teams. I see that there is a web client which I will definitely use instead of the unofficial Flatpak for Linux.
If I create a Microsoft account with one of my privacy friendly emails (custom domain), would Microsoft start to receive the emails that that account receives? If so, would you suggest that I make a burner Microsoft account for this specific use case?
Like someone else mentioned: you should be able to join meetings without an account.
That said, making an account with a custom email address will not create a microsoft mail inbox for you. Microsoft, however, will use your email address to send service-related messages. If I recall correctly, you can manage what kind of messages you want to receive, in your account settings.
The main difference is that you’d just be making a regular(free) microsoft account bound to an existing email address of your choice, as opposed to binding your domain name to a microsoft account to host your email there - which is mostly something companies do and is a paid service last time I checked.