Testing the Fediverse's interconnectivity between apps and protocols

One thing that would have been nice to know as a newbie on the Fediverse:...

PlasticParagraph, 8 hours ago (edited 8 hours ago) to random

Part 01:

This noob is testing the interconnectivity of the #Fediverse:

The word out there on the Fediverse make it seem as if all the different tools (Mastdn/P-tube/Lemmy/etc.) can interact with one another. But this is not the case, as some work both ways, whilst others only one way, or at all.

So made accounts & been testing for past few weeks:
a) #Hubzilla
b) #Friendica
c) #Mastodon
d) #Kbin
e) #Lemmy
f) #Iceshrimp
g) #Bonfire
h) #Peertube
i) #Funkwhale
j) #Pixelfed