I tried Mastodon and failed. Lemmy is different IMO in that you can freely access, write on and read all lemmy communities from any Lemmy instance (and apparently from Mastodon). On Masto you're quite siloed-in, can't follow "local" from a thematic instance with an account on another (and in Lemmy you can follow thematic communities from all around the threadiverse), people won't see your content unless they either actively follow you or read the local/global feed. Curating feed is a necessary effort and not too easy one since you only get to follow individual users.