Hubspot Trigger - "If you activate a second trigger, the previous trigger stops working"

Questions
1

The docs for this node say,

“If you activate a second trigger, the previous trigger stops working. This is because the trigger registers a new webhook with HubSpot when activated. HubSpot only allows one webhook at a time.”

Does this mean, a second trigger using the same Hubspot app (from which credentials are derived)?

We already have a workflow that has various Hubspot non-trigger steps (Get Deal by ID, that sort of thing), via credentials from a private app, that has an associated webhook. My understanding is that for a trigger (like “On Contact Property Changed”) I need to configure a public app, presumably with a new webhook.

Have I understood that correctly, and will the two things work ok together (or will the existence of the new webhook mess up our existing workflows)?

2

In case it’s helpful to anyone else, creating a workflow containing a Hubspot trigger that uses credentials from a newly created public app (in Hubspot) was fine, and had no effect on the workflows using Hubspot action nodes, based on credentials from a private app.