You might be wondering why tech leaders are trying to save Bluesky, and not Mastodon.
Put simply, unlike Mastodon, Bluesky is not a mature de-centralized service. Almost everyone who uses Bluesky only uses the server run by Bluesky themselves.
https://thelogic.co/news/quebec-ink/bluesky-free-our-feeds-elon-musk-twitter-takeover/