I'm excited, even though the odds of me buying the new one in the near future are slim. Between all the Xenoblades, the new X remaster, Prime 4 and my other backlog I already have lots of games I can play on what I own. I'll wait on the inevitable 3D Mario, and only consider the thing when a new Xenoblade or Metroid launches (or if there's a day-one exploit, my current Switch is objectively the worst one they made 'cause it's patched but still with the bad battery life).
That said, the fact that more details regarding backwards compatibility even can be announced is worrying. You've already said it plays Switch software, anything added to that can only mean asterisks, right?
Learn of YouTube, go to youtube.com and there's content.
Learn of Mastodon, ask "where's that?" and be told to go to joinmastodon.org. When I did this, you had to pick an instance. mastodon.social was full, you had to find something else. So you look at every instance there is in the list, and try to filter for moderation rules as you're told this is best practice. Don't worry, all of Mastodon can see everything posted by everyone on every instance! Picking an instance is really choosing where your values are best aligned, nothing more. So you spend the effort, make an account, get asked a reason why you're signing up (though I might be mistaking this memory for when I signed up to Lemmy), have to wait for approval, get an account, and sign into the official app...
... and there's no content. The only way I ever managed to get content was to learn of Mastodon accounts outside of Mastodon and manually look them up. So I ended up following a whopping 3 accounts, one of which being some EU governmental account, another essentially being the XDA RSS feed. Needless to say, I didn't stick around.
I don't know if things have improved since then, or how Bluesky does things. But I'd imagine a platform supposedly started by the people who founded Twitter, built from what supposedly was once an internal test of modifications to Twitter, to have an easier onboarding experience than whatever Mastodon did back when I tried it.