I’m testing. In conclusion, it is not possible to see comments from defederated instances’ users on federated instances’ threads.

• This post (where we are right now) is not on beehaw, for example: https://beehaw.org/c/[email protected]/data_type/Post/sort/New/page/1
• This post that is on beehaw is not on sh.itjust.works: https://beehaw.org/post/638729
• This comment thread that happened today only has the parent comment made by someone else, not mine that I made right after: https://beehaw.org/comment/317451