When I was looking at replacing my phone, I was considering an iPhone. But the major thing that stopped me was the lightning port.
The other major thing now is Firefox. It is simply better on android than iOS. It is by far the most used app on my phone, and not being able to use the extensions I do on android is a significantly worse experience.
I also really like my current phone, it has a marvelous bit of technology called a 3.5mm headphone jack and is amazing.
With hotmail/outlook, you can tighten up the security a bit, and stop the login attempts.
You can add an alias to you account, and then remove the permission to log in(dont actually remove it completely) from your original email. You will still recieve all the e-mails, and will work like normal, but your sign in will be different.
https://support.microsoft.com/en-us/office/add-or-remove-an-email-alias-in-outlook-com-459b1989-356d-40fa-a689-8f285b13f1f2