Api Yandex.Maps, how to disable balloon closing?

Question

Yandex maps

Friends, there is a map on the site. API version 2.1.74 is connected, the map script is in a separate .js file. When the map is initialized, one single balloon automatically opens: myBaloonSpb.balloon.open();

I need to prevent the user from closing this balloon. Naturally, I indicated that balloonCloseButton: false, but when you click on the balloon itself, it closes. Sometimes users do it by accident.

What parameter and where to shove so that the balloon that opens when the map is initialized remains open, despite the user's clicks?

UPD: in my case, the balloon is a custom icon, moreover, when the balloon is opened, it remains visible. So the design concept requires alas ((How to be?