PewDiePie posting on PeerTube will result with many of his videos being viewed on PeerTube. But either:
he would make an instance only for himself and majority of his viewers would fail to make a Fediverse account to follow him, or
he would open that instance for his viewers to make a account there, but then he would be liable for every comment made by his viewers, or
he would make an account on already existing instance, making a great burden of moderating his viewers for existing administration and moderation team.
An entire network cannot be effectively marketed and accomodate a new users' wave as well as any centralised website, like YouTube, or Bluesky.
Misskey is unmistakable which already makes it a good name
PeerTube is on par with YouTube and is perfectly transparent as a description of software: "YouTube but with P2P"
Writefreely is another clear but already proper name, definitely better than Medium or Substack (ony Medium's advantage - it sounds better in non-English languages)
Loops and Friendica remind better of their purposes than TikTok/Vine and Facebook
... on the other hand, every Threadiverse app, no matter if it is /kbin, Mbin, Lemmy or PieFed, fails with it
A federated MediaMarkt. Or at least something with shopping, selling something. Definitely a German product. Should be a quality one, but I would name my instance (or a national one) differently, perhaps in a local language.
There is no point in making worldwide Flohmarkt instances (same for Mobilizon), so, the naming should be less a problem than you expect
No app for Bluesky will help with this, because the purpose for the client ("app") is to use the API (a Bluesky one right now). And Mastodon's API provides exactly these not-federating like numbers - the problem you actually try to solve.
The number of likes and boosts has to be fetched directly from an original instance. Moshidon for Android does already like this and Fedilab for Android allows to fetch an entire conversation.
Bluesky clients have no concept for this they needed it.
https://misskey.de (instance by maintainers of Friendica instances libranet.de and venera.social)
I'm using misskey.social from Italy, but they have some annoying limits for new or less-followed accounts e.g. how many people can you reply to in one post (this would shut you out from some discussions...)
Updated.