Well, they caught someone.

Not really a work around, but you could get a VOIP number from MySudo or Hushed or a similar service and use that to sign up for Signal. Might at least be more private if you go about it with like a prepaid card and temp email or something.

Doritos Mac and cheese bites and Pringles Tortillas.

I’m not sure if this would work, it would definitely be more of a hassle if it does, but can you install Veeam B&R community edition and use it’s agent to do a backup, or does that really only work on VMs?