In reply to @ma_person:cuteworld.space
Is there an event for reactions, I mean for example if someone gives a thumps up to a post, how can that be detected?

I created a PR for it: #351. You may want to check it out and maybe give feedback so it can be merged sooner?

My setup of my callback looks like
gs.client.add_event_callback(
callbacks.message_callback,
(CallAnswerEvent,
RoomMessageText,
CallEvent,
CallInviteEvent,
CallCandidatesEvent,
CallHangupEvent)
)

And the callback itself like:
async def message_callback(self, room: MatrixRoom, event: Event):

    if room.room_id == ROOM_ID:
        print("Callback active")
        print(type(event))

        if isinstance(event, RoomMessageText):
            print(event.body)
        if isinstance(event, CallAnswerEvent):
            gs.rtcConnection.setRemoteDescription(event.answer["sdp"])