Context does matter here. If the caller would reasonably expect you to answer the phone (such as if they were calling a store or other place of business), an apology for not being able to get to the phone makes the most sense.
For the safety of our team and our customers during the pandemic, [LinkedPhone] is currently closed until further notice. We are grateful for your ongoing support and patience during this time and we look forward to reconnecting with you as soon as possible. Please visit our website or social media channels for updates. Stay safe and healthy.

With all these things to include, it's easy to write your greeting the wrong way. To keep it simple, something like this:
While email and text support saw an increase in recent years, many customers, partners, and potential hires still prefer to call your company directly. When writing your voicemail script, include basic information such as a short greeting, your company name, an invitation to leave a short message, and the time frame in which the caller can expect a return call. If relevant, you may want to include your office hours, extensions for company departments, and the contact information for your office manager or HR department.