Checkboxes from Symbol fonts aren't displayed

[calixteman]

Attach (recommended) or Link to PDF file here:
NEW-PATIENT-INTAKE-FORM-FOR-CASH-AND-INSURANCE-PATIENTS.pdf

Configuration:

• Web browser and its version: Firefox nightly
• Operating system and its version: Mac OS 14.1.1

What is the expected behavior? (add screenshot)

What went wrong? (add screenshot)
The checkboxes aren't displayed

Here's a minimal test case (see chromium bug tracker):
min-1.pdf