"Mastodon" is not an app
It's a software distribution
You're talking web browser (an app) behavior versus Phanpy (an app) behavior
You need an app of some sort to view anything running Mastodon
One of the biggest unspoken issues is that each app (seemingly) has an entirely different feature set specific only to itself
Talk to our young Gargron about that
He's the boss
So there is no "Mastodon itself"