@peesen when you use the export_to_template_context you have to call your field with the “widget_data” syntax. Your if statement should be:
{% if widget_data.partners_active.value %}
active!
{% endif %}
As long as you’re using that in a coded template it should work. If you’re trying to use it in a custom module or retrieve a field from a blog post in a blog listing, there is a different syntax. More info here: export_to_template_context - HubSpot docs