Choosing the right bathroom mirror depends on size and placement. A good rule...

https://sethscoolword.publishlane.com/posts/do-i-need-a-glazier-for-a-plate-mirror-with-outlets-and-sconces-through-it

Choosing the right bathroom mirror depends on size and placement. A good rule is to pick a mirror about 70% to 80% of your vanity width for balance