Reading the changelog for the next release of Akkoma (the software I'm running instead of Mastodon).
This caught my eye:
"Quote posts are now considered as part of the same thread as the post they are quoting"
Yes, Akkoma has always had quote posts though I've never really used them. The interesting thing here is that now it won't create a completely new thread and they will all be transparent for everyone looking at the thread.
Will be interesting to try this out to see how it will work and look. I expect to be able to upgrade within two weeks.
Of course, it's yet another example of how different flavors of Fediverse software choose to implement different features. However it looks for me won't be the same way it looks for you, if you're on Mastodon.