I know all those projects (I host akkoma, besides this lemmy instance) but still my point stands, everyone new to the fediverse will first get in touch with mastodon and its bad design because it is by FAR the most popular platform.
Mastodon is too hard for common folks and still miss some functionality. It is unfortunate none has forked it yet into something better and mastodon keeps being the largest platform by a far amount.
The only issue that makes this interoperation unusable really is that Mastodon groups representing Lemmy communities just “retoot” every single comment, obliterating the TL of anyone who dares to follow those groups. Which as far as I know only happens because Mastodon refuses to be cooperative and properly follow the standards.
Pleroma/Akkoma deal better with this, The groups there only retoot the main topic, and the answers you only see If you open the main topic, then you see all the threads.
Cool!