Yes, all tasks that have a date assigned in Dynalist. (“Own tasks” is a concept we added to Dynalist using our own #username tag convention, so Dynalist knows nothing about which task is for whom until we get around to do some custom programming.)
See the instructions for how to only show your tasks, in the “Schedule” view or your own default calendar.
I finally figured it out 
Zoom’s calendar integration can indeed only connect to a Google Account’s default calendar as you observed. But we do’t need that “calendar integration” feature at all, as it is only to view upcoming meetings in the Zoom desktop client. And for our Zoom Pro account, that already works without the calendar integration enabled since that account schedules the meetings. (I added details to our Zoom Video Conferencing Manual, section “3.3. Viewing upcoming meetings in the desktop client”.)
What we really want is the “Add to: Google Calendar” button when creating a Zoom meeting, or the equivalent when creating Zoom meetings with their browser extensions. In these cases, you can already choose that the meeting goes into our “Edgeryders Tasks” calendar. Again, I added detailed instructions for all of that to our Zoom Video Conferencing Manual.