[lrvick]

> Phones are required

Depends on how you define a phone. Cell phones are not required but SMS capable phone numbers kind of are.

I ported my cell phone number to a voip provider and get SMS and can even take calls from my desktop, or laptop, or simple voip capable DECT phones around my home as needed.

[epsylon]

many services that require SMS 2FA outright won't work on VOIP providers

[lrvick]

Not once have I been unable to sign up for something. Likely because I ported a number that once belonged to a real cell phone carrier.

Mandatory SMS 2FA is always a red flag on a product anyway as SMS is wildly insecure. FIDO2 or GTFO.