Laravel 8 show other user's avatars or initials?

In Laravel 8 you can use the code

<img :src="user.profile_photo_url">

to show your avatar image or your initials if you haven't uploaded an image yet.

My question is how do you do the same thing for other users? In the portal I made for my office we have created an internal chat system and when the user lists the users online I'd like to show their avatars or initials if there isn't an avatar.

Is there a built in method to do this or do I need to make something custom?