I usually think of it like this:

You have a friend; they have 3 jobs.

They have a job as a engineer, a cashier, and a janitor.

You wouldn't go to your friend in each job and ask "Are you the same guy I know????" - You know it's the exact same friend at each job, even though they're doing something different at each job.

Or think of it in gaming terms:

It's like someone with three different characters in a game. They switch between each character whenever needed, but you know it's the exact same person controlling each character, despite the different skills/class abilities.

Heck, even further think of someone who changes their hair color + style every day. You don't question or ask if they're the same person from when you first saw them. You know it's the same person, just different presentation.

Edit:

Ngl it's be pretty cool to see peoples responses to my post.

trinity santos with a mullet